Lite Rom (hero) - Android Development on Bada

My idea is, get an old ROM CM and put all the new features of versión 4.2, all without the disadvantage of increased consumption of CPU, RAM BATTERY kit kat.
I took this rom: http://forum.xda-developers.com/showpost.php?p=47351443&postcount=1514&nocache=1&z=8687517631333321
And deleted more even more apps to increase performance, and put the current keyboard settings.
https://www.mediafire.com/?s5b5lc24oz0w6jp
Zimage : http://www.multiupload.nl/LV7RPIT01C
FM radio: http://d-h.st/H4x Settings> Audio> Method> Galaxy SL/i9003
Great performance and better batery life before : disable notification led (options>system), close all widgets, disable location, (options>location), me too, in devoloper options 0 process background, and close apps whit end button(last option)
I think, this rom + gps + bigmems kernels + full erase bada = perfect rom for samsung wave
can someone help? I would like to make a tuto.
I want to clarify that this is the work of the devs (volk, rebellos, tigrouzen and many more) to which we are eternally grateful, i just copy paste :laugh:

j-virus said:
My idea is, get an old ROM CM and put all the new features of versión 4.2, all without the disadvantage of increased consumption of CPU, RAM BATTERY kit kat.
I took this rom: http://forum.xda-developers.com/showpost.php?p=47351443&postcount=1514&nocache=1&z=8687517631333321
And deleted more even more apps to increase performance, and put the current keyboard settings.
https://www.mediafire.com/?s5b5lc24oz0w6jp
Great performance and better batery life before : disable notification led (options>system), close all widgets, disable location, (options>location), me too, in devoloper options 0 process background, and close apps whit end button(last option)
I think, this rom + gps + bigmems kernels + full erase bada = perfect rom for samsung wave
can someone help? I would like to make a tuto.
I want to clarify that this is the work of the devs (volk, rebellos, tigrouzen and many more) to which we are eternally grateful, i just copy paste :laugh:
Click to expand...
Click to collapse
Zimage for wave2?

I think u must download the rom from 1st page of this thread,this in there, the final kernel(im not sure)
http://forum.xda-developers.com/showthread.php?t=2400126

Bigmem kernel is quite easy to do (some lines to change in /kernel/arch/arm/s5pv210/mach-wave.c)
Doing multiple bootmode and an interactive menu as in Zendrokat is a bit more work
Installing on NAND require to do changes in the initialisation files in branch kernel and devices. I managed to do it BUT couldn't get usual method of installation working, had to use the dd if= of= linux command, and some issue with Read Write speed.
For GPS, just need to push last GPS commit and it should be fine.
In any case, it need to work from sources

I think, the internal memory of the wave its partitioned.
Maybe only erasing all nand and rename all nand like the partition of android sould be work.
about gps and bigmem kernel, i have no idea :laugh:
U know where are the gps drivers? if put the drivers in this zip or in other rom manually, works?

Indeed, the internal memory is partitioned FAT16 FAT16 FAT16
Easy to repartition it EXT4 EXT4 EXT4 (for /cache, /system and /data) to make it android compatible and get rid of these virtual partition (with some changes in Init files). Problem is that recovery don't want to install and got some speed issue.
I think GPS files are both in libmocha AND kernel, so it need to make changes in sources and recompile kernel. (It just need to identify files on Github and copy paste).

Related

[ZIP][DEV][ROM] Nookie Froyo 0.6.8 (02/15) CWM flashable!

Nookie Froyo 0.6.8
is a development build of Froyo 2.2.1 for the Nook Color.
ClockworkMod flashable! - info below, please *read carefully* before flashing!
This build is near-AOSP and contains almost no extra software not deemed required for the device to function normally.
It is pre-rooted with SuperUser, busybox, SoftKeys v3.07, and ROM Manager 3.0.0.5 however.
The eventual intention will be a build that other devs and users can easily fork and create their own custom builds, themes, roms, etc.
** THIS IS A DEVELOPMENT BUILD **
Use this at your own risk! Myself, XDA, and NookDevs are *NOT RESPONSIBLE* for anything that happens directly or indirectly related to this software!
We're approaching a daily driver! Most things work now, including mp3 and video playback. Post any bugs you find here!
I'd like to thank all the nook color devs involved in getting to this state, testing, documenting, etc. We've got an amazing group of minds behind this device!
INFO
The microSD card image contains 4 partitions:
/dev/block/mmcblk1p1 : boot (fat32)
/dev/block/mmcblk1p2 : system (ext2)
/dev/block/mmcblk1p3 : data (ext3)
/dev/block/mmcblk1p4 : sdcard (fat32)
Use these partition IDs when following guides that require mounting/remounting filesystems.
What's Working:
MP3 playback
Video playback
Youtube, Pandora and other mp4 streaming apps (apps not included)
Accelerometer!
Wifi (adhoc + infrastructure!)
Graphics acceleration (LWP!)
Sound
Browser
Mostly working
Lockscreen is wrong size - REBOOT to fix
Not included / Not working
gapps ( gmail, youtube, maps, etc ) - can be installed, youtube fixed!
Bluetooth
FM radio
This build was created using the B&N kernel sources for 1.0.0, Omappedia's Froyo source ( currently RLS27.9.0.RC0 ), and binary drivers from TI for wireless, SGX530 acceleration, and DSP codecs.
Download:
This SD image requires a 2GB microSD card! Bigger is OK, smaller is not ok!
Note: if you wish to use a larger microSD card, you can use a partition editor to increase the size of the /sdcard partition (partition 4, fat32) *after* writing the image to your card.
Simply unzip this image and dd the file to your (empty) SD card, just like nooter.
nookie-froyo-SDIMAGE_2GB-0.5.1.gz 76459ec18fd32885257a3c8b7dbb2b76
nookie-froyo-SDIMAGE_2GB-0.5.6.img.gz 74e5310bcc21edf326bdc73a5652c124
nookie-froyo-SDIMAGE_2GB-0.5.8.img.gz 15158e735517c209a8f2ed14683a589c
nookie-froyo-SDIMAGE_2GB-0.5.9.img.gz 7d30f56eeede98ee1e99a0766f69dea3
nookie-froyo-SDIMAGE_2GB-0.6.6.img.gz fc58aa06fcfe1f46939ab72e38292abe
nookie-froyo-SDIMAGE_2GB-0.6.7.img.gz 92ef91dbac7a7baad3999256597b7920
nookie-froyo-SDIMAGE_2GB-0.6.8.img.gz
MD5: 18e7cc8393681ec590f698b7a671e859
If you want to customize your SD card, upgrade an already burned Nookie Froyo SD, live on the edge and burn it into your eMMC, or just want to poke around, download the base filesystem:
nookie-froyo-base-0.5.1.tar.gz 3e95a33e3926bc88011e66a724dccf8f
nookie-froyo-base-0.5.6.tar.gz 4419b21dd8eb56f6a6537345aa1c8ba1
nookie-froyo-base-0.5.8.tar.gz 2c279dbdaa6aad480590d55e48abf8ca
nookie-froyo-base-0.5.9.tar.gz 093a964685f0cbea2ef1aa8f6f0d7581
nookie-froyo-base-0.6.6.tar.gz 2304e337c351c667f27eb9aa4c3791b8
nookie-froyo-base-0.6.7.tar.gz 99b6a9d991951c368cf1f6b3429be958
nookie-froyo-base-0.6.8.tar.gz
MD5 c3c7aea7cdf8a3dde32acc1694f633aa
This archive also contains an uncompressed ramdisk image which you can easily edit, package, and copy to your boot partition.
ClockworkMod Flashable ZIP!
*IMPORTANT*
- please wipe data/factory reset if you're coming from B&N stock firmware or another rom!!
- please see other threads about installing and using CWM recovery - keep this thread to NF issues please
- this has been tested only using CWM 3.0.0.5 downloaded from market, be warned it may not work with IOMonster's kit or other versions. Let us know if you try and it does!
- replaces kernel and ramdisk - if you were using an alternate kernel you'll need to reflash it.
- This will irrevocably erase and replace the software on your eMMC! MAKE BACKUPS BEFORE FLASHING, you have been warned.
If you're upgrading from an older version of Nookie Froyo, you should not have to wipe - however if you do have problems *wipe data* and try again.
*IMPORTANT* - this zip does not require any extra steps such as formatting /boot, changing system permissions, and does not replace or remove CWM. If you are coming from a ROM that required these extra steps and are having issues, *please post your questions there* so the dev can be prompted to correct those issues properly.
If you're coming from a rom that doesn't support CWM properly see the following thread:
http://forum.xda-developers.com/showthread.php?p=11437545
Installing /system will take some time, and the progress bar doesn't update in realtime; you haven't 'locked up', just be patient as it may take a few minutes.
nookie-froyo-flashable-0.6.6.zip 6f61a464483ecf45d6e6e2d199b44d6c
nookie-froyo-flashable-0.6.7.zip 9bd13877addbad725a5bfe1eb13412df
nookie-froyo-flashable-0.6.8.zip
MD5: 03544d6a5a52eebdb468c89a5a2581e9
Please do not PM me for help, that's what this forum and the IRC rooms are for - I simply do not have the time to answer all of your questions, and asking them in a public forum will allow others with the same issue to help or learn from your experience!
CHANGELOG
v 0.5.6
permissions corrected on /system/bin/input for SoftKeys
corrected default cpu governor to conservative
added SuperUser
added busybox 1.17.2
added SoftKeys 3.00 ( thanks bpk! )
AdHoc WIFI support enabled
crypto/cryptofs added in kernel for ASEC support (required for installing some apks such as Angry Birds)
v 0.5.8
uses the /cache partition on eMMC instead of combining with data
replaces u-boot.bin to remove the 'touch the future..' splash (trademark)
increased refresh rate to improve responsiveness and reduce flicker (see tips in the next post)
added sensors lib - accelerometer works!
v 0.5.9
default web browser FC fix - no longer dies on location requests!
v 0.6.6
Youtube, Pandora, and other streaming media should now work.
added codecs for more media formats - including hw accelerated mp3 and video
vold reverted - no more broken SD card message
flashable zip!
updated SoftKeys to 3.07
fixed a /cache issue which sometimes prevented market downloads
v 0.6.7
SD card mount fixed - please post if you continue to have issues
Added back Mms, Phone, Camera, Telephony apks to resolve missing apps in Market - more apps should be available
Modified CWM zip reliability
v 0.6.8
Corrected improper handling of Format SD Card option - no longer formats /boot!
Touchscreen enhancements - no need to toggle screen on boot and better responsiveness around the edges - thanks deeper-blue!
Please see the updated issues/workarounds list in the following post
For more information, sources, and install instructions, please see:
http://nookdevs.com/NookColor:_Nookie_Froyo
Need help? Want to contribute? Join us in IRC! irc.freenode.net
#nookcolor - general chat, questions, ask for help here
#nookie - development
Do not try to Format SD card from Settings -> SD & Phone storage!
- there is currently a bug that causes the system to format the /boot partition instead of /sdcard when this option is used, leaving your NC unbootable. Format your SD card in your PC or another device if you need to! - fixed in 0.6.8!
FIRST BOOT TIPS -
On first boot, Launcher and SoftKeys will fight for control of the home intent - that is, when you boot the first time, your NC will ask you to pick your home activity.
*CHOOSE LAUNCHER* at first (DO NOT select 'always use this action'), and let the system boot and stabilize (3-4 minutes).
Hit Home (the N button). You'll be asked to choose your activity again, this time choose SoftKeys.
Try using one of the SU-required buttons (back or menu), and after a few moments SuperUser will prompt you to accept the action.
SoftKeys 3.06+ now prompt for SU permission at startup, just accept the superuser prompt when it pops, you'll still want to let the system stabilize for a minute or two.
If SoftKeys fails to ask for SU permissions, "Unable to execute as root":
Go to Settings -> Applications -> Manage Applications -> 'All'
Select SoftKeys from the list
'Force close' Softkeys if it's running, then 'Clear defaults'
Hit the N button, choose SoftKeys when prompted to choose your home action, accept the SU prompt when it pops.
Workarounds for some known bugs/issues:
(default in 0.5.8+) Improved Refresh-rate (no flicker! thanks [mbm]!): this should set the refresh rate to 68hz, the supposed default for the Nook Color's LCD panel -
Code:
adb shell echo 68000,1024/70/200/40,600/10/11/10 > /sys/devices/omapdss/display0/timings
Browser: force closes when opening a website that tries to use location services, due to the missing GPS. Try browsing to a url by typing in the google search box, and if you can get into the browser menu changing your homepage away from google will stop it from FC'ing on open.
Lockscreen wrong size: Simply reboot to correct this.
Touchscreen is slow/unresponsive:
Turn your screen off and then back on.
Disable Haptic Feedback in Settings -> Sounds.
Also, see this page for a possible calibration fix: http://nookdevs.com/Recalibrate_the_NookColor_touch_screen
(fixed in 0.5.6 w/included SoftKeys 3.00) No buttons! Try: http://forum.xda-developers.com/showthread.php?t=860153
(fixed in 0.5.6) SoftKeys - in 0.5.1 softkeys' buttons do not work due to a permissions issue. To fix, do:
Code:
adb shell mount -o remount,rw /dev/block/mmcblk1p2 /system
adb shell chmod 0755 /system/bin/input
Please post issues/workarounds/bugs in this thread, I'll try to keep this list updated.
To answer from the other thread...
Timeframe-- well, this isn't me doing this. But I think the devs just want to take the edges off, so be patient... I'm just the messenger on the news that it's been done. This is other people's accomplishment.
In fact, froyo was done weeks ago, though not entirely from open-source/freely distributed components like this (as far as I know).
To answer some questions--
BT not working, FM not working, accellerometer not working. Softkeys should work... dont' see why not anyway. It's stock froyo. No gapps, no Superuser.apk, no nothing over and above AOSP. Overclocking not in but should be possible... video playback hasn't been tried (it's early still!).... battery life who knows I haven't even had a chance to let it run down... I posted because the news was "out" anyway. I also can't compare to stock because I've never run stock, believe it or not. But it's based on the same kernel 2.6.29. It boots off a SD partitioned for system, data, cache, and sdcard. Only thing (I think) it touches on the internal storage is resetting that boot counter, otherwise you'd only get 7 boots at a time. Doesn't need much space. 2GB should be enough. That's what phones have anyway. Guess it depends what you want to do with it. Performance is decent, not steller compared to my g2 at least. Will benefit from OC.
devis said:
@fattire
Questions on everyone's (well, mine at least) mind... please answer as much as you can, and a big big thank you!!!
1. Is BT working?
2. Is FM working?
3. Can we still use SoftKeys for hardware key emulation?
4. Can we overclock the processor?
5. How's the video playback?
6. How's the battery life compared to stock?
7. Since you're booting from SD, does that mean the internal memory of the NC remains untouched, should we need to boot stock?
and
8. How does the device feel overall?
Click to expand...
Click to collapse
Nice stuff guys keep up the stellar work
Sent from my LogicPD Zoom2 using XDA App
So awesome, looking forward to the progression of this!
I got my SD to boot tonight!
It defiantly isn't for the faint of heart but it seems to work well enough as a good base to start on. Pretty snappy to boot.
I would like to emphasize that this is VERY rough around the edges and if you aren't planning on hacking with the kernel, or code, or attempting to make your own rom then this is NOT for you.
http://i.imgur.com/WRyNV.jpg
http://i.imgur.com/H4ahM.jpg
Defiantly awesome work (and pure AOSP + TI drivers) which means no propritary B&N bits
Thanks for releasing such and early build to the public. It's not often you see that.
(I won't even consider playing with this build)
As a humble Analysts I grovel at the feet of your magnificent tech prowess.
(thanks)
Does this include a working JIT or is that one of the things in progress?
That seems to be one of the more compelling things from froyo (at least for a device with more internal storage than a nexus one). I would expect (well, hope anyway) that the froyo JIT would have a noticeable impact on the speed...
Mods, can we please stickie this?
Very awesome... Will try it out later today!
Since this runs off the sdcard can you power down the NC and remove the sdcard and boot normally?
Novarider said:
Since this runs off the sdcard can you power down the NC and remove the sdcard and boot normally?
Click to expand...
Click to collapse
Read: http://nookdevs.com/NookColor:_Nookie_Froyo#After_you_have_burned_the_uSD_card
To get back to stock, just remove the uSD card and reboot.
Click to expand...
Click to collapse
It has all the info you want, and is mentioned in the first post.
cicada said:
Workarounds for some known bugs:
No buttons! Try: http://forum.xda-developers.com/showthread.php?t=860153
Click to expand...
Click to collapse
You also have the option of converting the volume buttons to back/menu as well. It is documented in this thread, but the filenames have changed in this build. You will need to modify the following files..
/system/usr/keylayout/qwerty.kl
/system/usr/keylayout/twl4030-keypad.kl
I am not a developer.
I am not likely to become one at this stage of the game...
I am, however, either brave or stupid because I am downloading the image and will see if it will boot on my NC.
I do this because:
A) I want to SEE froyo running on my NC, and
2) If I have any problems, feedback might help the devs
I love seeing all the progress that has been made on these things.
Is flash supported in the browser with this initial froyo build?
jay084 said:
Is flash supported in the browser with this initial froyo build?
Click to expand...
Click to collapse
I tested flash and it does work.. The flash plugin is not included in the build however, I had to find it and install it via ADB.
Just rebooted back to my regular rooted NC system after pulling the sdcard and can only say-
Marvelous.
Yes, it is slow, no keyboard and all of the other things that were spoken of in the initial posts, but IT WORKS.
I don't have time to do much else with it right at the moment, but I will mess with it more later.
BertoJG said:
I tested flash and it does work.. The flash plugin is not included in the build however, I had to find it and install it via ADB.
Click to expand...
Click to collapse
Could you post the flash plugin you used? I would really appreciate it. Could you also comment on the quality of flash videos online. I'd like to watch espn3 on the nook...in bed...lol
OK, so I booted the rom, and followed the instructions at nookdevs...
Installing superuser.apk and pushing su seemed to work just fine!!!
Softkeys installed and got superuser permissions and works as well.
Installed astro file manager, and that works fine too...
At that point, I wanted to mount the usb storage and move over a bunch of APK files... mounted the nook and could only see the mlo, img file etc... no problem creating an apk folder and putting files in there, but then I can't see that folder when I look for it in astro....
Any info on simply copying files via USB using this build?
Also, thanks to all the devs for the awesome work... looking forward to playing around with this more!!!

[30-05-13][SD/MAGLDR] Barebone CM7 V3 SRAM

This build is ported from http://forum.xda-developers.com/showthread.php?t=1867986 using Portadroid forum.xda-developers.com/showthread.php?t=1094372 Credits and thanks to Rick_1995, boonbing for Portadroid, cyanogenmod, cmhtcleo team (arif-ali, milaq, charansingh and all other cm developers) for device tree, tytung for kernel, Darkstone1337 for SuperRAM concept, and any others we forgot.
Instructions:
Well you know just extract everything and put the build folder (the one with all the files in, for example ics, jelly) in the root of your sd card. If WM6.5 tap on clrcad (nothing appears to happen) then haret, if magldr navigate to build folder using ad-sd dir and select build folder name then boot AD SD.
Please remember to REBOOT X 3.
Magldr users can get different sized blank data.ext4 from here forum.xda-developers.com/showpost.php?p=24930501&postcount=1353 edit; may get boot loops, please test. Magldr default=512Mb if you leave empty. edit2 here is blank 256mb one http://www.mediafire.com/?ey40c1wti77ni2w
Downloads
Barebone CM7 V3 -Latest SuperRAM build from Rick_1995 see this post http://forum.xda-developers.com/showpost.php?p=42007074&postcount=64
note that this is not a port from nand rom, but an exclusive SuperRAM build from Rick_1995
There is a problem for magldr users changing lcd density, a solution is posted here http://forum.xda-developers.com/showpost.php?p=47161712&postcount=78 (thanks to Calisto1986 for the heads up). HaRET users are unaffected and can edit startup.txt as usual
Barebone CM7 V2b SRAM
DEV-HOST LINK
Barebone CM7 V2 SRAM
DEV-HOST LINK
Barebone CM7 SRAM
DEV-HOST LINK
This is from parent thread by Rick_1995
Note: I compiled this rom for myself but figured sharing won't hurt, and hence I don't plan to provide much support though I'll see what i can if you find a bug.
What is the difference between this and the nightly ?
All libraries and native code is compiled in ARM mode (except for libwebkit which is still in thumb mode due to it's excessive size) and compiler side optimization is turned on (again, exception being libwebkit using -Os and sqllite using -fno-fast-math).
Important function calls and syscalls are aligned for faster response time.
I re-implemented some of the cpu atomic functions based on what I've learned so far, swp is used for atomic swap instead of ldrex/strex, register swapping of old value is done at success so if a context switch does occur, the loop will be aligned at the same boundary as the function. On best case, there shouldn't be any difference but can improve execution time for worst case of context switches.
Java libraries and bionic libc are compiled with NDEBUG, and the debug variable for java is also set to false.
Most crap (stuff that "I" do not use, has been removed ie. VPN, live wallpaper support etc..)
Fixed a few memory leaks in bionic, dalvik and ppp (also tether).
I've removed most locales except en_US and en_GB, though android still seems to be compiling strings from other languages in the build, so they might work but i can't guarantee anything with locales other than en_(US|GB). Arabic patch
Reverted the patch which auto closed notification bar when all notifications are canceled/removed. It was irritating me..
more stuff i don't remember.
For now the kernel is tytungs-r1 ics kernel patched for gingerbread, though I will be patching/updating and working on the cmhtcleo kernel once i have the build known to be bug free after some time.
Click to expand...
Click to collapse
One more............
thans wiss....very quick port ....
Touch selection sound does not work for me.... others looks good so far...
Is it possible to run SD build from CLK? Just dont wanna install MAGLDR again, it`s so terrible for compability with Linux
Just get new micro sd card from SanDisk, its class 10, 95 mb per second -- its the most speediest micro sd in the world (micro SDHC UHS-I Card: Extreme Pro 8 GB)
Update: I`ve installed this rom twice with custom size about 4096 but everytime ive got near 512 mb. WHY?
aion92 said:
Is it possible to run SD build from CLK? Just dont wanna install MAGLDR again, it`s so terrible for compability with Linux
Just get new micro sd card from SanDisk, its class 10, 95 mb per second -- its the most speediest micro sd in the world (micro SDHC UHS-I Card: Extreme Pro 8 GB)
Update: I`ve installed this rom twice with custom size about 4096 but everytime ive got near 512 mb. WHY?
Click to expand...
Click to collapse
Because you're not setting proper command line, if you're booting from magldr, you just can't do this. If you're booting from clk, while creating boot image, set the cmdline exactly as in startup.txt and modify the partition size then flash that to a secondary boot partition, now just boot on secondary boot partition for the SD rom. I think suspend wasn't working properly with clk on sd roms, have to see why.
If it's from haret (unlikely) just edit size in startup.txt
@wis, thanks for the port, might use it sometime in the future when i try the new WP builds
Thanks Rick_1995 and Learning Never Ends team for this GREAT ROM!
I tried to change the LCD density in the system.ext4/build.prob. 192 is shown if i open the /system/build.prob in root explorer but this doesnt effect the rom... What can i do to set it to 192?
Thanks Wis (although I think you should be concentrating on something outside xda!).
Any advice on how to get option for "Corporate" Accounts?
This could be my favourite
Cheers
Tom
Sent from my HTC HD2 using Tapatalk 2
Please make this ROM compatible with NativeSD mod. Cm7 is the most perfomance android series for me, for now...
aion92 said:
Please make this ROM compatible with NativeSD mod. Cm7 is the most perfomance android series for me, for now...
Click to expand...
Click to collapse
Hmm... I may be wrong here, but from my understanding...
The NativeSD method writes to partitions on an SDCard...
SuperRAM ROMS mount to RAM which is faster than both NAND and SDCard...
So I would assume by modifying this to use NativeSD would be more detrimental than good?
yep, RAM is faster but, for my needs, more free RAM better than overall speed and this rom\Android build eats as little RAM as possible, so its just great rom which perfactly fits for my needs but NativeSD gives me internal storage (up to 32 gigs from 512 mb) and it can be launched from CLK loader.
aion92 said:
yep, RAM is faster but, for my needs, more free RAM better than overall speed and this rom\Android build eats as little RAM as possible, so its just great rom which perfactly fits for my needs but NativeSD gives me internal storage (up to 32 gigs from 512 mb) and it can be launched from CLK loader.
Click to expand...
Click to collapse
For your internal storage needs (NativeSD's "internal" storage is determined by your ext partition size, you still require fat partition with nativesd, so, unless you have a 64gb card working with your hd2, you likely wouldn't have 32gigs "internal") you can resize your data.img file to whatever size you like. You can use the tool "Toporesize" I believe it's called, or something like that. Also, you can investigate other scripts to install such as Apps2sd.
Other than that, the only thing to tell you is that as of right now, from my understanding, the NativeSD method requires certain kernel mods apparently, which means it's limited to ics/jb builds for now.
Version V2 please!This is great, thanks:good:
strikelight said:
For your internal storage needs (NativeSD's "internal" storage is determined by your ext partition size, you still require fat partition with nativesd, so, unless you have a 64gb card working with your hd2, you likely wouldn't have 32gigs "internal") you can resize your data.img file to whatever size you like. You can use the tool "Toporesize" I believe it's called, or something like that. Also, you can investigate other scripts to install such as Apps2sd.
Other than that, the only thing to tell you is that as of right now, from my understanding, the NativeSD method requires certain kernel mods apparently, which means it's limited to ics/jb builds for now.
Click to expand...
Click to collapse
Ok, thanks, I`ll try expand my storage with "Toporesize" then.
Update: after some researching ive managed to have 4 gigs of storage even without toporesize - with MAGLDR startup.txt config of 4096 gb does nothig for me earlier, but with sboot + CLK it works great! My problem is solved, yay!
Update2: aaand... after 1 reboot the rom just doesnt boot at all ... ill try to install one more time then.
Barebone CM7 V2 SRAM
Barebone CM7 V2 SRAM is now on post 1:good:
So, every time when i make a reboot or shut down from working rom, the data.ext4 clean itself to 0 bytes. I use CLK + sboot \ sboot tools, 4096 mb automatic generated data file. Any ideas?
Strychnin said:
Thanks Rick_1995 and Learning Never Ends team for this GREAT ROM!
I tried to change the LCD density in the system.ext4/build.prob. 192 is shown if i open the /system/build.prob in root explorer but this doesnt effect the rom... What can i do to set it to 192?
Click to expand...
Click to collapse
As this a super ram version you need to change it in a special way but for the life of me i cant remember howlol
When Robbie reads this im sure he will post the instructions
Sent from my HTC HD2 using Tapatalk 2
This is so great project but why not releasing NativeSD version? Such minimal ROM would act routinely writing on SD much less than Paranoid or AOKP so it seems ideal SD-born! This way we could have fast SD Android for regular use dual booted with WM like Artemis (which is still maintained) thus yielding the fastest and the most versatile smartphone of the world!
ictimai said:
This is so great project but why not releasing NativeSD version? Such minimal ROM would act routinely writing on SD much less than Paranoid or AOKP so it seems ideal SD-born! This way we could have fast SD Android for regular use dual booted with WM like Artemis (which is still maintained) thus yielding the fastest and the most versatile smartphone of the world!
Click to expand...
Click to collapse
At the moment there is no surport for cm7 but i dont think it will be long
Sent from my HTC HD2 using Tapatalk 2
wis1152 said:
As this a super ram version you need to change it in a special way but for the life of me i cant remember howlol
When Robbie reads this im sure he will post the instructions
Sent from my HTC HD2 using Tapatalk 2
Click to expand...
Click to collapse
:laugh:
edit line in /bootsystem/build.prop ro_lcd_density=240 to whatever using a root browser, and reboot.

New kernel with dual boot

Old method, read post 2
Date 05-11-2012 Huawei s7-105 dual boot kernel
by hal_2000
Hi all, first i like to thank irfanbagus without is help this cound not be possible, look at the
original post: http://forum.xda-developers.com/showthread.php?t=1598803
This is stock kernel 2.6.32-9-ideos plus dual boot features
kernel 2.6.32.9-ideos == android 2.2.2 == froyo
Warnings:
If your kernel different from 2.6.32.9 it will not work
If you dont know what you are doing stop, I'm not responsible if you brick your device
the rom2 must be compatible with kernel 2.6.32
Works on:
my huawei s7-105
huawei s7-10x – possible if kernel = 2.6.32-9
huawei s7-slim – possibly not, because different hardware
How to install:
Follow this steps, if not sure, stop do not go on
1.1-back up your rom, just in case
1.2-must be root, huawei must be rooted to work properly, if not stop
1.3-must have cwm install, if not stop
1.4-in external sdcard make 3 partitions, format it in ext2, in stock kernel ext3 does not work
1st fat32 for your data
2nd ext2 for system
3rd ext2 for cache
4th ext2 for data
if you have already an scard in fat32, resize is a good option
I use a 2gb sdcard, 1gb for fat and 300mb for other partitions, i'm a linux user so I use gparted
to create partitions, windows tools are also available, google for it
1.5-unzip the file in a directory
1.6-connect huawei s7-105 to pc
1.7-boot huawei in fastboot mode, exec “c:\directory\adb reboot bootloader”
1.8-wait, until it blanks the screen, on top in says --fastboot mode--
1.9-exec “c:\directory\fastboot flash boot boot-dual.img”, it will take 20 to 30s
1.10-exec “c:\directory\fastboot reboot”
1.11-thats it, you just install the stock kernel with dual boot
How to test it:
2.1-read the how to install, and install the kernel with dual boot
2.2-back up your rom, if not done in 1.1
2.3-you must have rooted the huawei, if not stop
2.4-you must have cwm install
2.5-boot huawei in cwm = recovery exec “c:\directory\adb shell”, then “#su”, and finally type
“#reboot recovery”
2.6-you have rebooted in cwm, choose install zip from sdcard, then choose apply zip, chose file
stock-test-rom2.zip
this will install the custom rom “stock-test-rom2” to sdcard partions 2,3,4
it will take 4 to 6 minutes, it depends on speed of sdcard
2.7-after install, it will return to menu, click power = get back to menu
2.8-reboot
2.9-huawei will boot in rom1, the one you have already,
2.10-go to file explorer, create a empty file in external sdcard = 1st fat partitions, name it
“bootsdcard”
2.11-reboot
2.12-it will boot the rom2, it will take 4 to 6 minutes, the 1st time, depends on speed of external
sdcard
2.13-to boot the rom1 again, simply delete the file “bootsdcard” in 1st fat partitions
Why have dual boot ???
I have done it just to prove it is possible
No, I did it to improve my huawei s7-105, the people at huawei stop development for this fine
little tablet a long time ago and I want to have gingerbread on it or android 4.01, got tired of waiting, so
this way is easier to test custom rom, and less provable to brick the tablet when in development.
The rom2 must be compatible with kernel 2.6.32, you can not install android 2.1 in rom1 and
android 2.2 in rom2, is not possible
To do next:
– compile better kernel, with ext3 or battery saving options
– compile a better custom rom, maybe gingerbread or ics or cm9
file list in zip:
boot-dual.img = kernel 2.6.32-9 with dual boot
stock-test-rom2.zip = simply custom rom = stock rom test = android 2.2.2
fastboot = fastboot for linux
fastboot-windows = fastboot for windows
adb = adb for linux
adb-windows = adb for windows
problems in install, post it, I will try to help you
link to the zip file: https://www.dropbox.com/s/6x5pcymooopb4z6/s7-105-kernel.zip
Sentence of the week... “,,,dont ask for it, do it...”
multi-boot kernel
New method, multi-boot n roms
With this method we can test new roms faster then the dual-boot, no need to create the partitions, and we can have many rom, as long we have space in external sdcard, for now only 3 rom available, if you need more ask, i will extend to 20
you will need about 500mb of space for each rom
How it work:
Begin by creating the following directories in external sdcard:
/sdcrad2/multiboot/rom2
/sdcrad2/multiboot/rom3
/sdcrad2/multiboot/rom4
inside of rom(x) must be 3 files, system.img, data.img and cache.img
to create files, in linux do:
dd if=/dev/zero of=system.img bs=1000000 count=200
mkfs.ext2 system.img
make it a ext2 file type, the 2.6.32 kernel only accepts ext2 files, for me is better I think because ext3 and ext4 have journaling that implies a lot of reads and writes, reducing the life of the sdcard
then mount the system.img file in linux
mount -t ext2 -o loop system.img /some_dir
copy the files of the rom to /some_dir, adjust the files permissions like you see in updater-script
unmount /some_dir
and copy the 3 files to “/sdcrad2/multiboot/rom2”
create a empty file in external sd card like “/sdcard2/rom2”
install the multi-boot kernel, boot in fastboot (vol up+home+power) then execute in command line
fastboot flash boot boot-multi.img
fastboot reboot
that it,
in the case the rom doesn't boot, remove battery and sdcard, power on and it will boot from rom1 (phone internal memory)
roms that work with this kernel, tested in one S7-105
-- stock rom, Indonesia 2.2.2
-- froyofusion rom, by joelian good rom
-- trizet v03, by tri-zet
to do next:
--maybe port cm7 to S7
questions:
ask, I will reply.
https://www.dropbox.com/s/697ye5exf6386nw/multi-boot.zip
hal_2000
Hi,
do you know if CM9 oder CM10 will function? Which kernel is used by CM9 or CM10?
Hi, i'm not sure but all the cm9 and cm10 roms i have lookup use kernel at least 2.6.35 or 2.6.38, this dual-boot kernel is 2.6.32 so probally will not work, but if you have a more recent kernel for huawei s7, give it to me and i will add that function and see it it works.
Note: i was wrong, last night found a cm10 version in a russian forum that uses kernel 2.6.32-ideos with some add on.
I also want in the future to compile a more recent kernel, but write now i'm learning how i can port roms
Hal_2000
hal_2000 said:
Hi, i'm not sure but all the cm9 and cm10 roms i have lookup use kernel at least 2.6.35 or 2.6.38, this dual-boot kernel is 2.6.32 so probally will not work, but if you have a more recent kernel for huawei s7, give it to me and i will add that function and see it it works.
Note: i was wrong, last night found a cm10 version in a russian forum that uses kernel 2.6.32-ideos with some add on.
I also want in the future to compile a more recent kernel, but write now i'm learning how i can port roms
Hal_2000
Click to expand...
Click to collapse
Hello hal_2000
Would u share ur initramfs source?
Im try to port to my p1000 from original thread (irfanbagus) but not luck.. exec command not running when i add to init.rc
Ps. Thats irfanbagus too give me info that u try to port to tab so i ask to u..
Thanks before
savie
Hi Savie, your kernel for galaxy y works great, thanks for that.
My initram source is the same as irfanbagus (dual-boot) , the multiboot its the same with a few more lines , you can extrat from the boot img file, here is the link
https://www.dropbox.com/s/0cxj05isqvswucp/boot-multi.img
If you need more help, ask.
p.s.
One question about arm toolchain, do you know wicht toolchain comes gcc version 4.4.0 ?
My S7-105 kernel is compile with that version, i have version 4.5.2 when i compile the kernel it boots but then reboot, i guess the modules are not compatible, i need to test with arm toolchain with gcc 4.4.0.
hal_2000
hal_2000 said:
Hi Savie, your kernel for galaxy y works great, thanks for that.
My initram source is the same as irfanbagus (dual-boot) , the multiboot its the same with a few more lines , you can extrat from the boot img file, here is the link
https://www.dropbox.com/s/0cxj05isqvswucp/boot-multi.img
If you need more help, ask.
p.s.
One question about arm toolchain, do you know wicht toolchain comes gcc version 4.4.0 ?
My S7-105 kernel is compile with that version, i have version 4.5.2 when i compile the kernel it boots but then reboot, i guess the modules are not compatible, i need to test with arm toolchain with gcc 4.4.0.
hal_2000
Click to expand...
Click to collapse
Thank you hal_2000 will check later im on phone mode this week..
Thats make me confuse in young only follow irfanbagus and working but when try to gtab p1000 with same procedure its nothing happen..
Still follow samsung source recomended use arm-2009q3-none-linux-gnueabi gcc4.4.1 coz so far only that can make my kernel booting..
I think something not good in my initamfs coz cant execution 'exec' command and i dont know why..
Hi Savie, lets see if i can help you, if exec dont run, check if you have busybox in /sbin, check the version and permission, also check type of cpu, best bet is copy busybox that is working on device, irfanbagus dual-boot as busybox for a arm v6 cpu, my mutlboot as busybox for arm v7 cpu, diferent types of devices uses diferent type of cpu, busybox need to be compatible with type of cpu.
Hope it helps, try to connect to device with adb as soon it boot up, and check what is executed.
good luck, need more help ask.
hal_2000
hal_2000 said:
Hi Savie, lets see if i can help you, if exec dont run, check if you have busybox in /sbin, check the version and permission, also check type of cpu, best bet is copy busybox that is working on device, irfanbagus dual-boot as busybox for a arm v6 cpu, my mutlboot as busybox for arm v7 cpu, diferent types of devices uses diferent type of cpu, busybox need to be compatible with type of cpu.
Hope it helps, try to connect to device with adb as soon it boot up, and check what is executed.
good luck, need more help ask.
hal_2000
Click to expand...
Click to collapse
Mmm i see i use irfanbagus busybox,., thats maybe the problem,., i will try next week coz my laptop still repair,., thank you for ur advice friend,.,

[Kernel] TRIM: Speeding up the Galaxy S2 i9100

Brickbug Aftermath: Speeding up the Galaxy S2 i9100, S2 AT&T i777, S2 Epic 4G Touch d710 and Note n7000
UPDATE: KERNELS CAN TRIM FAT PARTITIONS
contrary to what has been said in this thread and elsewhere, the S2 TRIM kernels could always trim FAT partitions. the problem is that the FAT file system implementation does not support batch trimming (ie: fstrim), but the fact that the DISCARD mount option has always been supported on FAT has eluded us all. the mainline commit that introduced the option is here, and the corresponding code in CM's repo is here.
this means that it would probably be a good idea to add DISCARD to the default mount options of the internal sdcard in CM. deleting files from internal storage would probably become slower, but the expectation would be that overall performance should increase. the performance issues related to queue flushing that plague non-queued TRIM commands should not be a big problem in this case, since the sdcard is used mostly for media (few big files without multitasking access).​
UPDATE: VICTORY !!!
2016-03-02: after two years of tests and discussions, folklore, FUD and evidence, @Lysergic Acid finally took the plunge and merged! TRIM is now part of the official CM 12.1 and CM 13.0 kernels, and this project can at last be retired, yoohoo!!! CM 13 users now enjoy TRIM out of the box, but users of CM 12.1 builds older than Match 2016 as well as CM 11.0 users continue to require a separate TRIM kernel.
this thread is dedicated to Entropy and the brave users who risked their devices to run the very first TRIM tests.​
IMPORTANT NOTE FOR USERS
i am tried of lazy users sending private messages to me instead of reading the thread. i am especially tired of users asking over and over on PMs whether TRIM is safe. if you read the threads you would know: TRIM is completely safe on every supported device, stop asking! and please, never PM technical questions to anyone on XDA unless you already know the guy.
DOWNLOAD FROM -> HERE​
IMPORTANT NOTE FOR KERNEL DEVELOPERS ONLY
you should not blindly merge these changes into your kernel. doing so can result in unrecoverable bricks!!! you need to check that certain patches are already merged in your kernel before enabling TRIM. please follow these steps; you can get help from this post. please contact me when in doubt, let's not revive the slumbering brickbug monster from hell, thank you!​
UPDATE: CM 13.0 kernels are now available!!! (for CM 13.0-supported platforms only: i9100 and i777.)
UPDATE: several enhancements in new kernel batch:
CM 12.1 kernels are now available!!! (for CM 12.1-supported platforms only: i9100 and i777.)
kernels can now be flashed with the official, restricted cyanogen recovery that is bundled with CM 12.1.
rom-independent kernels: kernels are no longer dependent one-to-one on specific official CM builds (they might work with other roms too), and their names no longer reference a specific CM build.
although there are no official CM 11 builds for the i777, thanks to rom independence CM 11-based kernels for that device are now available.
CM 11 i9100-to-i777 cross-flash kernels for the i777 may now work with other i9100 roms besides official CM.
UPDATE: Dic 25, 2014: a holiday present!!! as kernel maintainers swiftly acted to patch PFBug, @Gustavo_s took the plunge and merged TRIM support in his latest kernel. i have verified that his kernel is as safe as mine regarding TRIM. finally a more mainstream kernel is getting this functionality, hopefully i will be able to discontinue my kernels soon!
UPDATE: great news, we have fixed FPBug!!! fixed TRIM kernels are online!
UPDATE: this project now supports all roms and kernels!
if you are not running CyanogenMod M snapshots, please see this post.
this project restores TRIM capability to CyanogenMod kernels for the Galaxy S2 family of 4210-based devices: i9100, i777, d710 and n7000. TRIM is needed to avoid "aging" of the state of the eMMC, the internal flash storage, that eventually slows the device to a crawl. TRIM functionality is built into android 4.3 and later. however, due to historical and safety concerns, TRIM capability was removed from the CM kernels for these devices (and from most if not all other AOSP-based kernels).
an in-depth discussion of this matter, including safety, risks and current state of the kernels for various devices, can be found in the main project thread. you can review that content if you are curious. get the source for this project: patches and patcher script are here (git) and base system here (repo). for instructions on how to recreate my kernels from source, see this post.
STATS: Nov 5: 500+ kernel downloads (latest version only).
Oct 1: 250+ kernel downloads (then-latest version only), top 5th thread in its forum (ThreadRank).
PROJECT STATUS: testing still needed on MAG2GA TRIM bug-affected devices before TRIM patches go mainstream. IMHO, TRIM patches are ready to be merged into mainstream kernels. kernel maintainers please read the warning at the very top of this post!
UPDATE: kernel wifi issues fixed! thanks to invaluable help from @mparus. also, ART works just fine.
What to expect
some users see big changes while others do not. there are many different eMMC models with different firmware versions embedded in these devices, and it is clear that some are faster than others. it is even possible that some eMMCs may have firmwares that completely ignore trim commands. following are some benchmarks and comments submitted by users.
@defecat0r run before-and-after benchmarks and packed it all in this neat graph (thanks so much!):
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@defecat0r also says: "I've been dicking around copying stuff back and forward, factory resetting and restoring cwm recoveries while on this kernel for a day now, if this fix was going to trigger superbrick i'm sure it would have done it by now. As far as i'm concerned this is safe as houses. [...] This is the biggest thing to happen to these devices since i don't know when!" (post)
@smoke2tun got better results: "My phone is blazing fast". he says: "The phone is really snappy and responsive. [...] After runing Antutu v5.1 the overall score is 17816. On NeatRom the score had an average of 11000." (post)
@Roxxors: "My phone had become so unbearably slow I was about to toss it in the garbage, [...] I'm coming from NeatROM 4.1.2, and let me tell you something, after installing C11 M9 with this kernel, my phone is FLYING." (post)
@|Vyp|: "Nice work, the device is flying now." (post)
@bihslk: "OMG! Installed CM11 M10 and your TRIM. Phone is flying now,,, WoW" (post)
@burninghouse: "i installed it and i can say only one word....."AWESOME"... My s2 is blazingly fast with same battery life" (post)
@dirtyhewr: "Omg... I don't think my device has ever been this fast... No lags at all" (post)
@Dudebowski: "[...] the increase in write ops nearly doubled! Regardless of the numbers for proof, this trim along with the floater fix [ed. note: FPBug] has made this device enjoyable to use again for the first time in years. The change in responsiveness after trim is night and day." (post)
thank you so much for the feedback and benchmarks guys!!
When things do not work
then again, some users do not get big improvements. check out the case of @desvariando.
speculation about these cases can be made. TRIM failing to provide advantages can be attributed to one of two causes:
when the fstrim command is run on some devices, it reports success but runs in zero time instead of taking the usual couple of seconds it takes on most devices. it looks like samsung disabled ERASE/TRIM support in some eMMCs, as a stopgap measure while they researched the issue further and before they output a final fix. if your eMMC trims in zero time, there is probably no realistic way to ever trim it. once your device gets slow, it can never be rejuvenated. if you fall under this group, and you have not yet ever filled the device's internal memory and your device still performs well, i would reduce the internal sdcard partition in size asap and leave a healthy sized area of 2GB inaccessible. this overprovisions the eMMC and ensures that it will never ran out of untrimmed space (assuming that the disk area you are leaving out is in fact still trimmed from factory). UPDATE: so now i know of a way to trim these untrimmable devices. it is extremely dangerous though (unless you have JTAG access to the eMMC). these eMMCs have a command to resize their boot partitions (boot0/boot1). these partitions are treated differently from all others by these modules. you can think of them as separate, safe, small, virtual disks; even if you write all over the main disk, you will never touch these partitions. also, wear leveling on the main disk will never move data around on these partitions. contrary to data on the main disk, once you write something here, it stays written forever (until you write something else). because they are treated differently, the eMMC needs to know their size. for versatility there is a non-standard command that will resize these partitions, and as a side effect it will repurpose the rest of the flash as the "main disk", creating all of its FTL structures from scratch. this full, low-level reformatting will fix a brickbug-damaged eMMC and will also trim an untrimmable device. the trick is to resize the boot partitions to some strange value, then resize them back to original size. all data everywhere will be lost, including the bootloaders, and this is why it is so dangerous. these phones will brick unless there are proper bootloaders and friends in place (though with JTAG access you could restore all this data). so the procedure would go like this: boot into recovery, make backups of all partitions you care about (bootloaders, EFS, etc), resize boot0/boot1, resize them back, and restore the needed partitions. but if anything goes wrong before you finish... you have a brick! because it is so dangerous, AFAIK this procedure has never been attempted to fix a brickbugged S2, much less to just trim one. but it has been carried on successfully on devices that boot from alternative sources when their eMMC is wiped, check it out here.
your device still had a reasonable amount of trimmed space when you installed this kernel and trimmed, and was not in need of trim. this can happen if you never filled the device's internal memory throughout its entire lifetime, or if you trimmed your device recently without knowing it. you could have trimmed by using the stock 4.1.2 kernel (which is TRIM-capable) in two ways: by wiping data from android or recovery, or by using an app such as LagFix.
otherwise, your device should be more responsive and use less battery after trimming. the need for trim is a well established reality that no FTL-based flash storage can escape.
STOP!!! DRAGONS AHEAD!!!
in theory there could be risk of hard-bricking your device forever. i believe this risk to be non-existent, based on reasons i detail in the aforementioned thread, and also based on recent experience: many people are already using these kernels without any kind of incident. however, the standard disclaimer applies: you accept full responsibility for what happens to your device.
READ and FOLLOW the instructions carefully.
Downloads
for the supported devices, you will find IsoRec-compatible CyanogenMod-based kernels here. (old kernels without IsoRec support can be found here. yet older retired kernels without FPBug fix are still available here.) note that for some supported devices, no releases or M snapshots are currently being produced. for those devices i can produce kernels based on known 'stable' nightlies if users ask.
A word about CyanogenMod 10.1.3
UPDATE: great news, we have fixed FPBug!!!
there are no CM stable releases for 4210-based devices after CM 10.1.3. the sad truth is that the kernel for these devices is broken. this affects all roms, not just CM. there seems to be some unidentified defect in the hardware itself, and no workaround for it has been implemented in the kernel so far (if such a thing is even possible). after years, @cgx finally observed the bug in action and now we at least know what we are up against. it is nasty as hell: random stack corruption. in layman's terms, any process can randomly misbehave, crash, be corrupted, corrupt data, etc... all bets are off, anything could happen. and it looks like this might never be fixed.
for whatever reason this was not much of a problem in the CM 10.1.3 days. these days, with a much more advanced and demanding android, the bug is real trouble. most people find that the last reliable CM version for their 4210-based device is 10.1.3 (including the CM team itself). i made kernels for this version, find them in the downloads section.
NOTE: the CM 10.1.3 kernels are untested. do take a nandroid! and please post your results.
Instructions
prerequisites: you need to already be running a fully official version of CyanogenMod supported by this project. (i mean fully official: dual booters, alternative kernel/recovery users, etc are not invited to this party.) you will replace your current official CM kernel with the patched, EXACT SAME VERSION kernel from this project.
download this app and run it to check if your device is affected by hardware bugs. root is requested but not needed for this test. do not trust the app's verdict! instead use the reported eMMC model name and the firmware revision (fwrev) to look up your eMMC in this table.
is your eMMC model an MAG2GA? if so you are affected by TRIM bug. WARNING: this configuration is untested. my kernels should be safe but they have never been tested on this particular eMMC, so risk cannot be completely ruled out. please read this post and decide whether you would like to test. testers are needed! i believe this is the last remaining piece of evidence needed to establish the general safety of trim on this family of devices and start pushing for its inclusion in the standard kernels, which is the ultimate objective of this project. UPDATE: things are looking much better, see this post. testing is still needed though, please help. UPDATE: MAG2GA eMMCs with fwrev 0x0E can be found in d710 devices and were tested to TRIM without problems. i personally believe this configuration to be safe.
are you affected by WL Bug? impossible. according to the available data, no 4210-based device has ever been produced with this eMMC... SO YOU MUST BE MISTAKING. please double check your situation; then post. (in any case, this bug is supposed to involve data corruption only, and not bricking.)
are you affected by Brickbug? my kernels contain samsung's fix for this bug, but samsung's fix was never exercised in practice with TRIM. i will accept ONE volunteer to test. i do not want more than one device to brick if the test fails. know that testing can potentially brick your device beyond repair. i would prefer someone with a compromised S2 (eg: lost IMEI, cracked screen) to do the first test. please post your willingness to test on this thread (include eMMC and fwrev). UPDATE: many people affected by this bug are already using my kernels without incidents. i personally believe this configuration to be safe.
if you are not affected by the previous bugs, you run no special risks by flashing my kernels.
you should start on a supported official CyanogenMod; if you are not already running it, flash it now and test it.
optional: as an extra safety step, back up your EFS and store it OUTSIDE your phone. you should have done this years ago! you never know when you might need that backup.
optional: preferably no apps should be moved to the internal sd card (check 'apps' in settings). this could slow the device a bit, but is no problem otherwise. note that apps moved to the EXTERNAL sdcard can cause BIG SLOWDOWNS.
optional: make sure you have 20% (or at the very least 10%) free space in your internal 2GB /data partition (where apps are normally installed). you will not notice speed improvements unless/until you have free space in /data.
optional: if you have been on official CM (including kernel) for a long time, and this is the first time you are going to trim your device, please contribute benchmarks. install Androbench and run all benchmarks, it takes just a few seconds. in the history section you can see most if not all results in a single screen; please take a snapshot for your before-and-after comparison.
make a nandroid backup. if you need to back out of the change for whatever reason, you will be happy to have it.
download the appropriate kernel for your CM build (includes CWM-based recovery). flash it without wiping. (at any time you can reflash official CM without wiping or upgrade to a newer CM -loosing TRIM support, of course.)
reboot.
install the LagFix (free) app from xda (the market version is declared to be incompatible with the i9100). go to the lagfix tab, check the 3 partitions, and tap on run. grant root access. the 3 fstrim operations should be successful ("partition was trimmed" means success).
UPDATE: there is a replacement app for LagFix called Trimmer that has several advantages over the former: is fully free, can schedule TRIMs, and is compatible with Android 5.
alternatively, instead of using lagfix you can run one of these commands (these are better because they also trim /preload):
# on the phone in the terminal app:
su -c "fstrim -v /system; fstrim -v /data; fstrim -v /cache; fstrim -v /preload"
# on your PC if you are connected to the phone via adb:
adb shell su -c "fstrim -v /system; fstrim -v /data; fstrim -v /cache; fstrim -v /preload"​
reboot.
optional: contribute benchmarks if you qualify. run Androbench again to take an 'after' snapshot and share your before-and-after shots below.
your device should now run FAST... profit!
Please donate hardware to test
i do not have any of the supported devices to test, i am developing blind. i would gladly accept an i9100 with a cracked screen as a test bed if you can send it to an address in USA or Argentina (or any other supported device).
But wait, there's more...
Automatic trimming
android 4.3 and later should trim all writable file systems each night during charging automatically (/cache, /efs, /data and /preload). you do not need to invoke fstrim or lagfix manually again. if you want to be extra tidy you can invoke lagfix after each flash of a CM upgrade to trim /system (which is normally read-only).
because of this offline auto trimming, android 4.3 and later should not mount partitions with the discard mount option (which implements online trimming whenever space is freed), but CM does anyway. this is a bug that slows down the device and i have uploaded a patch to CM's gerrit. my kernels fix this as of Sep 14 2014.
if you use CM 10.1.3 (android 4.2.2), you might be thinking that you need to regularly trim the file systems yourself (you could use scripts or lagfix premium for automation). but as of Sep 14 2014 my kernels mount /cache, /data and /preload with the discard option, meaning that freed space on these partitions is immediately trimmed (which, again, slows down the device compared to offline trimming but is better than no trimming at all). so you only need to invoke lagfix after each flash of a CM upgrade to trim /system if you want to obsess about it. (the /efs partition is not mounted with discard; call me superstitious.) btw, i made the /preload partition writable (it is normally read-only in CM 10.1.3) so you can trim it and/or use it for whatever purpose you want. i could create 10.1.3 kernels without the discard mount option for those who wish to roll their own periodic trim feature; just ask.
The internal sdcard partition
the majority of the phone's flash is devoted to the internal sdcard partition which is formatted in a vesion of FAT. unfortunately the linux kernel file system driver for FAT is unable to trim its free space. some people format this partition to ext4 for performance and safety reasons (google). if you do that, you can fstrim it.
The preload partition
these devices have 0.5 GB ext4 /preload partition (also called "hidden"). in CyanogenMod it is unused and should be empty (you can check with the file manager). you can manually fstrim this partition (open a terminal on the phone and type: su -c "fstrim -v /preload" or from the PC via adb: adb shell su -c "fstrim -v /preload") or format it from my recovery to increase the trimmed free space in your eMMC, effectively increasing its over-provisioning by 0.5 GB. this makes the eMMC faster and extends its useful life.
UPDATE: i have removed the trim-on-format functionality (partition wiping) from the kernel patches, and thus all future kernels. there are no safety concerns with the previous kernels, but there can be problems if someone uses my patches to build a complete ROM (as opposed to just a kernel, as i have been doing). please refer to the commit for details. [Oct 3]
Adjusting partition sizes
you can repartition your phone to better distribute available flash space. i recommend vestigial /preload (unless you want to go back to stock roms later), 1 GB /system (the original 0.5 GB /system is too small for android 4.4 and gapps; 0.75 GB is enough, but the Nexus 5 comes with 1 GB, so i guess google expects it to keep growing), 6 GB /data (of which you should always keep 2 or 1 GB free to provide the eMMC with trimmable free space -remember the FAT partition does not trim), and the rest (about 8 GB) used for the internal sdcard. you can format the internal sdcard as some FAT or as ext4. (but windows does not understand ext4, but there is MTP... google!)
you can use ODIN (windows-only) or heimdall to repartition. @Roxxors contributed a nice partitioning how-to that you should read. note that he embedded my M9 kernel in his ODIN files. to create a file with the right kernel for your needs, read this.
here are some PIT files (these files are for the i9100 16 GB only, but you can use PIT Magic to roll your own):
0.5 GB system
0.75 GB system
1 GB system, 3/4/6 GB data
1 GB system, 8 GB data
1 GB system, 4 GB data, small preload
1 GB system, 6 GB data, small preload <-- this PIT is buggy!
(see attached file for a replacement i made; includes a script to repartition from linux using heimdall.)
in general, 2 GB, or even 1, of trimmable free space (ie: free space in the /data partition) will probably be more than enough to speed up your device, with rapidly diminishing gains over that.
UPDATE: due to a bug in CM, the recovery is unable to format the /preload partition. formatting is needed after repartitioning. to manually format, open a terminal on the phone and type: su -c "mkfs.ext2 /dev/block/platform/dw_mmc/by-name/HIDDEN" or from the PC via adb: adb shell su -c "mkfs.ext2 /dev/block/platform/dw_mmc/by-name/HIDDEN" (you can also use other commands such as mke2fs and mkfs.ext2.)
PLEASE NOTE: this is not a partitioning thread!!! please DO NOT seek partitioning help in this thread. please post in an appropriate thread instead. this thread is for KERNEL ISSUES ONLY. thank you!
XDA:DevDB Information
BrickbugAftermath-i9100, Kernel for the Samsung Galaxy S II
Contributors
Lanchon
Source Code: https://github.com/Lanchon/BrickbugAftermath-SGS2
Kernel Special Features: CyanogenMod kernel with TRIM support
Version Information
Status: Stable
Created 2014-08-10
Last Updated 2016-04-17
TRIM On Other Roms And Kernels
TRIM on custom roms
when running any non-trim enabled kernel, significant speed benefits can be obtained by overprovisioning the eMMC. as long as a portion of the eMMC is in the erased state (trimmed) it will perform well, even if the kernel is not able to trim. this can be seen for example when the device is new: non-trim kernel and still the device runs nicely. as time goes on, normal usage causes the eMMC to be written all over, reducing the amount of trimmed space to zero and killing performance. this situation can be avoided in two ways: 1) by using a trim-enabled kernel that will trim space once it is no longer used by files, or 2) by setting aside an area of the eMMC and never write to it, effectively keeping it in the erased state. this second option is called overprovisioning in SSD parlance.
those of you wanting to run official CM kernels, CM nightlies, or other custom roms altogether can still obtain most of the benefits of a trim-enabled kernel without one by overprovisioning your eMMC. the stock partitioning of the 4210-based devices includes an 0.5 GB /preload partition that is just perfect for the job.
Requirements:
you have not repartitioned your device and shrank the /preload partition to enlarge other partitions.
your custom rom does not use the /preload partition. (CM does not, and I do not know of any that does... but google!)
you are not using dual-boot or other mods that use the /preload partition.
NOTE: if you have shrunk /preload and enlarged /system to 1 GB you can still follow these steps to overprovision using the free space in /system, but you will need to redo them every time you flash a new rom. otherwise, if you have an 0.5 GB /preload, you can do these steps once and just forget about the whole thing (until you flash something to the /preload partition, that is).
Instructions:
NOTE: please read step 9 now and decide if you want to use a root file manager to delete everything in /preload before you start or if you want to try to format the partition with your current recovery.
READ THIS POST IN FULL. find out which bugs your eMMC has if any, and decide whether to run the risk of trimming.
download to your device the newest trim-enabled kernel for your particular device from here.
download to your device a recovery-flashable copy of the kernel that you are currently using. (or else make a nandroid backup in step 6.)
if you want, download to your device the recovery trimmer script attached to this post. (see step 11 for more information.)
reboot to recovery.
make a nandroid backup if you do not have a flashable copy of your current kernel on your device. (make sure your nandroid is compatible with CWM-based recoveries.)
flash the trim-enabled kernel.
in the advanced section, choose reboot recovery. now you are temporarily running a trim-enabled kernel.
in the mounts and storage section, choose format /preload. (make a nandroid backup first if unsure of its contents.)
NOTE: it has been reported that format /preload does not work. this is a bug in CM's recovery. you may want to adb shell to the device to delete all files and folders under /preload, including those hidden. free space in this partition will remain trimmed when you later use the phone so it is important that most of the partition be empty after this step. (bug report)
still in the mounts and storage section, mount (if necessary) the following partitions: /system, /cache, /data and /preload.
choose one of these two options:
attach your device via USB to your PC, open a terminal, and type adb devices to verify that your device is reachable and authorized. (if it is not, under linux type adb kill-server; sudo adb devices to troubleshoot the issue; under windows try restarting the adb server from an administrator console.) in the terminal type adb shell "fstrim -v /system; fstrim -v /data; fstrim -v /cache; fstrim -v /preload" to trim. for each partition, fstrim should output a message stating the number of bytes trimmed; this indicates success.
flash the attached recovery trimmer script. you will not have any indication of success using this method. (make sure you have mounted the applicable partitions in the previous step!)
flash your old kernel back or, equivalently, restore your nandroid. (you can advance-restore only the boot partition if you want.)
reboot and profit.
TRIM on rooted stock android 4.1.2
this is beyond the scope of this project, but still some people may be interested.
Instructions:
make sure you are rooted.
WARNING: MAKE SURE YOU ARE RUNNING STOCK ANDROID VERSION 4.1.2 (THE RELEASE, NOT A LEAKED VERSION) OR YOU WILL DESTROY YOUR DEVICE DUE TO BRICKBUG!!!
READ THIS POST IN FULL. find out which bugs your eMMC has if any, and decide whether to run the risk of trimming.
WARNING: MAKE SURE YOUR EMMC IS NOT AFFECTED BY TRIM BUG OR YOU WILL DESTROY YOUR DEVICE!!! if you have trim bug, you must not trim on a stock kernel, end of story.
also, it is assumed that release (not a leak) 4.1.2 stock kernel contains this patch and thus is brickbug safe. but there might be different versions, and there is no way to be sure if the corresponding source code was patched by samsung, so...
WARNING: IF YOUR EMMC IS AFFECTED BY BRICKBUG, THE POSSIBILITY HARD BRICKING YOUR DEVICE CANNOT BE COMPLETELY RULED OUT without access to the kernel source code. proceed at your own peril, or better yet, switch to a custom rom/kernel.
install the LagFix (free) app from xda (the market version is declared to be incompatible with some 4210-based devices). go to the LagFix tab, check the 3 partitions, and tap on run. grant root access. the 3 fstrim operations should be successful ("partition was trimmed" means success). alternatively, those with busybox installed can try issuing the fstrim commands themselves. in particular, you must do this to trim /preload. you can also look for the fstrim command in the private files of LagFix.
UPDATE: there is a replacement app for LagFix called Trimmer that has several advantages over the former: is fully free, can schedule TRIMs, and is compatible with Android 5.
reboot and profit.
NOTE: i assume there is little free space in /system and /preload in stock roms, so most benefits will come from trimmed free space in /data. this space will get overwritten in time so you will need to periodically trim.
Recreating My Kernels From Source
i have been wrongly accused of not providing full source code to my kernels. to counter this accusation i am providing step-by-step instructions on how to exactly recreate any of the kernels published in this project from source. to start, all you need to know is the filename of the kernel you want to recreate. then simply follow these steps:
identify and obtain the CM release that corresponds to the kernel based on the kernel filename. example:
kernel: kernel-cm-11-20140915-NIGHTLY-Lanchon-TRIM-20140916-n7000.zip
CM release: cm-11-20140915-NIGHTLY-n7000.zip​note that nightly releases are not kept for long in CM's download servers. that is why i mirror all relevant nightlies right beside my kernels in the downloads section.
extract the build manifest (/system/etc/build-manifest.xml) from the CM release zip file.
using the manifest, checkout the source code corresponding to the release to ~/android/system by following these instructions.
identify the version of the patches that corresponds to the kernel based on the kernel filename. example:
kernel: kernel-cm-11-20140915-NIGHTLY-Lanchon-TRIM-20140916-n7000.zip
branch: cm-11
date: 20140916
tag to match: cm-11-20140916​
identify the corresponding tag in my github repo and checkout its tree to ~/android/brickbug/BrickbugAftermath-SGS2. if no tag matches exactly, use the tag in the same branch that sports the closest earlier date.
run ~/android/brickbug/BrickbugAftermath-SGS2/scripts/repo-patch apply to apply the patches.
(repo-patch apply functionality used to be provided by standalone script apply in old versions.)
build the kernel using these instructions.
finally, you can run ~/android/brickbug/BrickbugAftermath-SGS2/scripts/repo-patch reset to unpatch your source tree.
(repo-patch reset functionality used to be provided by standalone script reset in old versions.)
Sh*t...
erdal67 said:
Sh*t...
Click to expand...
Click to collapse
lol brickbug
well someone will have to the guts to try. if you read the main thread (very long), i argue that it is probably safe to run my build in your phone... but then, there's only one way to know for sure
erdal67 said:
Sh*t...
Click to expand...
Click to collapse
Got the same Revision (19) according to the cm table this Rom could! But not must brick our device?
empulse92 said:
Got the same Revision (19) according to the cm table this Rom could! But not must brick our device?
Click to expand...
Click to collapse
i'm sorry you are affected. i personally think it would not brick (for reasons explained in the main thread, you are invited to chip in).
but i could brick! there's risk.
we will never know until somebody tests...
Lanchon said:
i'm sorry you are affected. i personally think it would not brick (for reasons explained in the main thread, you are invited to chip in).
but i could brick! there's risk.
we will never know until somebody tests...
Click to expand...
Click to collapse
I think i may give it a try... Unsure if i should usw another pit? Got 2gb (stock) for now you suggestet to use 4or 6 GB? I got some Mainboards hat home with destroyed imei chips, seems to be good testers if the chip is the same :highfive:
Another question: is the fw Version of the chip upgradeable via Odin vor heimdall? Is it possible to acces the Software used by this chip?
empulse92 said:
I think i may give it a try... Unsure if i should usw another pit? Got 2gb (stock) for now you suggestet to use 4or 6 GB? I got some Mainboards hat home with destroyed imei chips, seems to be good testers if the chip is the same :highfive:
Click to expand...
Click to collapse
boards with lost IMEIs? that would be great to test!!! no big loss in the worse case.
don't bother with the PIT files. just follow the main instructions. this is to test if it TRIM works without bricking in those chips. if you later want to set up a phone for real use, you can try resizing the partitions (i would for my phone).
exactly the same chip! VYLOOM 0x19 :victory: (date differs , 06/2011 but i guess this wont make a big difference at least )
edit: bootin...:fingers-crossed:
edit 2: succesfully booted,
empulse92 said:
exactly the same chip! VYLOOM 0x19 :victory: (date differs , 06/2011 but i guess this wont make a big difference at least )
edit: bootin...:fingers-crossed:
edit 2: succesfully booted,
Click to expand...
Click to collapse
cool!! thanks!!!
and? did you use lagfix?
did u trim /sdcard?
Lanchon said:
cool!! thanks!!!
and? did you use lagfix?
did u trim /sdcard?
Click to expand...
Click to collapse
i did dont know if there are errors if trim isnt supported or not but for now... see yourself
note : play store says lagfix app is incompatible with this device i got the app from xda
http://forum.xda-developers.com/showthread.php?t=2104326
Click to expand...
Click to collapse
empulse92 said:
i did dont know if there are errors if trim isnt supported or not but for now... see yourself
note : play store says lagfix app is incompatible with this device i got the app from xda
View attachment 2891398
Click to expand...
Click to collapse
thanks! yes i'll update the app link then. those trims were successful, and yes it shows errors when you try to trim and the kernel doesn't support it.
i guess now you should use that phone and see if it bricks... for now its looking like the chances of bricking are going way down.
could you do two more tests?
try to trim /sdcard (steps in my first post)
then enable ART (debugging menu) and and see if it boot loops or not.
thanks!
no error when trimming sdcard... should i wait some more before trying art?
empulse92 said:
no error when trimming sdcard... should i wait some more before trying art?
Click to expand...
Click to collapse
great! did the trim sdcard command took some time, like a second or two? or did it end absolutely immediately, like a no operation would?
no, everything checked ok, you can try ART. i think it should work. if it doesnt, wipe data from recovery (i think you are using an empty phone anyway, right?)
there was no delay after using the command.. just as you said, as if nothing happened. this is why i was wondering^^ but still not sure about this
yep the phone is empty, but i cant get into recovery or download mode .. time to set up adb
edit: device offline-.-'
edit 2: i am retarded and forgot to press the home button :')
edit 3: alrighty, now it boots but after wiping its still dalvik cache vm
empulse92 said:
there was no delay after using the command.. just as you said, as if nothing happened. this is why i was wondering^^
yep the phone is empty, but i cant get into recovery or download mode .. time to set up adb
edit: device offline-.-'
edit 2: i am retarded and forgot to press the home button :')
Click to expand...
Click to collapse
hmmm... i've read somewhere the android shell sends stderr to limbo. i just tried to fstrim /sys on my nexus and not a word, exits immediately. on my linux PC it says "fstrim: /sys: FITRIM ioctl failed: Inappropriate ioctl for device".
i'll look into this further. meanwhile, are u testing ART?
EDIT: i dont know why no error is printed. but on android, if you fstrim with -v option you get text if successful:
[email protected]:/ # fstrim -v /system
/system: 0 bytes trimmed
[email protected]:/ # fstrim -v /data
/data: 2399477760 bytes trimmed
[email protected]:/ # fstrim -v /sys
1|[email protected]:/ #
so if you do fstrim -v /sdcard and you get no output, then the kernel is unable to trim FAT32. if this is the case, it would pay to find a alternate solution to this in the long run.
enabling art forces bootloop, formatting data reverts back to dalvik :silly:
no chance to use art for now^^
edit: here's a logcat but i'm not sure if it shows a normal boot or the art bootloop
https://drive.google.com/file/d/0Bw86veXkn-fiZ2FnU3lqdkFuWVE/edit?usp=sharing
edit 2: another screenshot (dont be confused i didnt change the time zone yet)
empulse92 said:
enabling art forces bootloop, formatting data reverts back to dalvik :silly:
no chance to use art for now^^
edit: here's a logcat but i'm not sure if it shows a normal boot or the art bootloop
https://drive.google.com/file/d/0Bw86veXkn-fiZ2FnU3lqdkFuWVE/edit?usp=sharing
edit 2: another screenshot (dont be confused i didnt change the time zone yet)
View attachment 2891493
Click to expand...
Click to collapse
thanks!
assuming official M9 has working ART, there must be some trouble with my build setup. my OpenPDroid build has the same thing, it is not related to TRIM. oh well...
your screenshot clearly shows there is no TRIM support for FAT32
i will think of what to do next. in any case, if you turn off ART and flash this on your working phone (with 20%+ free space in your internal partition) you should notice a big improvement in responsiveness and diminished lags. (a friend told me "feels like a different phone", but maybe he is exaggerating.) i still warn against doing it! i would exercise the internal storage on this phone for a while, installing big apps then deleting them, flashing the rom a couple more times, and using LagFix to trim all partitions.
or you can make a backup of your current phone and restore it here, then lagfix, and see if the increased speed justifies the risk. its your call...
for now i have nothing else to ask you to test. thank you very much!!! you've been amazing help!!!
using this on my daily phone now :good:
empulse92 said:
using this on my daily phone now :good:
Click to expand...
Click to collapse
oops! are you sure??? i hope nothing bad happens...
after LagFix trimming and rebooting, how do you feel the phone in the way of responsiveness?

HP TOUCHPAD Optimize for All Android ROMs with Swap Partition

HP Touchpad Universal Optimize Swap Settings for All Android ROMs
MAX 1GB RAM - MAX 1836 Frequency
Click HERE for detail Memory and Frequency information for each ROM
Click HERE to dual boot all listed Android ROMs and LuneOS
Click HERE for PowerOFF - Prevents Battery Drain
Upated: November 12, 2020: Added HP TOUCHPAD DEBRICK Linux Live CD
Upated: November 12, 2019: Added PowerOFF
Upated: November 07, 2019: Rom_Reducer to Evervolv, Kitkat by Milaq and LuneOS
Upated: October 09, 2019: HpTp_MaXtreme (Max Extreme Kernel Settings for All ROMs)
Upated: October 01, 2019: Added ROM: LineageOS 11 Kitkat by Milaq build October 01, 2019
Upated: September 28, 2019: All_Files for Lollipop got updated to fix WiFi
Upated: September 25, 2019: Added ROM LineageOS 14.1, HpTp_MAX_Settings, 1GB Swap
Upated: September 2, 2019: Fix Evervolv 7.1.2 Frequencies, Created: Universal Authority, Added: Evervolv Pie, Posted: Universal Settings
Upated: August 24, 2019: HP Touchpad Novacom Repair Android
Upated: August 2, 2019: New Improved Settings: HpTp_Universal_Optimized_Swap
Added ROM_Reducer; Removed support for Lineage 11
Upated: July 12, 2019: Flash ToolBox v42 by jcsullins to /boot
Upated: July 8, 2019: /System Partition is 2.2 GB:/ Improved Settings to All ROMs
________________________________________________________________
HP TOUCHPAD DEBRICK Linux Live CD
Built in with all the tools to properly run TP Debrick v005 by jcsullins and also novacom drivers.
Click HERE for the Guide
Click HERE to Download ISO File
________________________________________________________________
HP Touchpad Novacom Repair Android
Built in Novacom Driver, Repair non bootable Tablet, Flash ToolBox, Modify Ramdisk and more !
Click HERE for the Guide
Click HERE to Download ISO File
________________________________________________________________
Back up any data before making any changes to the Tablet, follow this guide:
Click here on how to backup ROM to PC and restore
Important, do not restore the /boot partition
________________________________________________________________
For WebOS users
WebOS has the swap partition and it can be share with Android.
There is no need to Flash the file Automatic_Wipe_All_and_Create_Android_with_Swap.
But to use Android PIE, Oreo and Nougat the Android /system partition must be 1400 MB.
There are two options to resize the Android /system partition.
Inside webOS using Tailor:
Click here for Tailor
Using the ToolBox:
Click here to download the ToolBox
After the Android /system partition have been resize Flash any listed ROM.
________________________________________________________________
The Automatic_Wipe_All_and_Create_Android_with _Swap can be flash using any Recovery.
It is best to use TWRP Recovery Version 3.1 or 3.2
Click here to download TWRP Recovery 3.1 by Flintman
Click here to download TWRP Recovery 3.2 by Flintman
________________________________________________________________
Easy Automatic process to Wipe All and Create Android partitions with Swap 1GB or 500MB
Click Here to Download Automatic_Wipe_All_and_Create_Android_with _Swap, choose 1GB or 500MB
This file MUST BE FLASH to create the swap partition to be use by the listed ROMs
A complete Data RESET of all the internal storage.
All partitions are deleted, is a total fresh start as if the Tablet came from factory with only Android install.
The Android partitions are created and formatted ready for use:
/system 2.2 GB ( Allows to install any ROM plus the maximum size of Open Gapps Variant Super )
/cache 200 MB ( Standard size )
/media 1GB or 500MB ( USB Media in Android, use it to save the ROM, Gapps and Universal Settings to Flash )
HpTp_MAX provides more RAM available and Android can use over 750 MB of swap space.
/swap 1GB or 500MB ( It allows Android to store temporally Data from RAM to allocate more Memory for Apps. )
/data depends on the model 16, 32 or 64 GB ( The free space available for Android Apps and user Data )
/boot 32 MB ( Is a fixed sized ) Moboot will be created and also TWRP Recovey 3.2.
The Tablet will boot as always, with Recovery in the Moboot Menu ready to Flash any ROM.
________________________________________________________________
Flash all listed ROMs in the order to download:
1. First the ROM ( Only the specific ROM by the built date will work )
2. HpTp MAX Universal Optimize Swap Settings ( Enables swap partition and provide the best settings for Android )
All_Files (name of the ROM) zip contains everything. Uncompress on PC first then flash the selected frequency.
2_A Optional -- HpTp_MaXtreme (Max Extreme Kernel for All ROMs)
Click HERE to Download HpTp_MaXtreme for All ROMs
If you do not know the maximum CPU speed of your Tablet flash 1674 first to set up.
All Kernels are the same, the speed is preset to avoid installing any Kernel App in Android.
Do not install any Apps in Android to make the Tablet work faster, it will be the opposite.
It will use more RAM and cause reboots, there is nothing to change.
This is a laptop with a touch screen keyboard not a phone.
3. Optional -- ROM Reducer Click HERE for ROM Reducer
4. Flash the Open Gapps according to the ROM version, is best to install Pico and build the system as need it.
5. Optional -- All listed ROMs have /system Read and Write enabled, Click HERE for Root access using SuperSu v2.82
6. Optional -- Universal Authority Click HERE for Universal Auhority
7. Important: Read the section on this guide -- Flash the ToolBox 2015-01-08-v42 by jcsullins into /boot
Flash the files in the listed order in TWRP all at one time.
The Tablet will boot into the Welcome setup screen as a brand new Device.
________________________________________________________________
Root access with SuperSu v2.82 for all the ROMs
5. Click Here to Download SR5-SuperSU-v2.82
________________________________________________________________
Evervolv v9 Android PIE by Elginsk8r
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 9 and the Variant you want, Pico is recommended
Click Here for detail information about the Pie ROM
________________________________________________________________
Dirty Unicorns v13 Android PIE by Flintman
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 9 and the Variant you want, Pico is recommended
Click Here for detail information about the Pie ROM
________________________________________________________________
Dirty Unicorns v8.1 Android Oreo by Flintman
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 8.1 and the Variant you want, Pico is recommended
Click Here for detail information about the Oreo ROM
________________________________________________________________
Evervolv 7.1.2 Android Nougat
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 7.1 and the Variant you want, Pico is recommended
Click Here for detail information about the Nougat ROM
________________________________________________________________
LineageOS 14.1 Android Nougat 7.1.2 by invisiblek
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 7.1 and the Variant you want, Pico is recommended
________________________________________________________________
CyanogenMod 12.1 Android Lollipop by Jcsullins
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 5.1 and only Pico
Click Here for detail information about the Lollipop ROM
________________________________________________________________
CyanogenMod 11 Android KitKat by Jcsullins
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 4.4 and only Pico
Click Here for detail information about the Kitkat ROM
________________________________________________________________
LineageOS 11 Android KitKat by Milaq November, 01 of 2019 Build
1. Click Here to Download the ROM
2. Click Here to Download HpTp_MAX, select All Files for this ROM
4. Click Here to download Google Open Apps
Select Platform ARM, Android 4.4 and only Pico
Click Here for detail information about the Kitkat ROM
________________________________________________________________
ROM Reducer
Click HERE for the Guide
2.Click HERE to Download, ROM Reducer is included in the All Files for each ROM.
________________________________________________________________
Universal Authority
Click HERE for the Guide
6. Click HERE for the Flash Files
________________________________________________________________
Flash the ToolBox 2015-01-08-v42 by jcsullins into /boot
________________________________________________________________
After successfully flashing any of the listed ROM the ToolBox can be flash into boot to maintain the battery.
Do NOT use the ToolBox to Resize or Repair Android Volumes.
If done it will corrupt all the Volumes ( Partitions ) and a PC with the Novacom driver must be use.
The ToolBox does not display the /swap partition, it was not created for that purpose.
Only after flashing all files from this guide the /boot partition has just enough space for the ToolBox.
7. Click Here to download all the files to flash the ToolBox to boot/
Flash_TPToolBox_v42_to_Boot.zip ( delete any splash *.tga images files and copy ToolBox into /boot )
Remove_TPToolBox_v42_from_Boot.zip ( delete the ToolBox from /boot )
If more than one ROM got flash and the ToolBox was not successfully copied to /boot then use this file:
Clean_Boot_Remove_All_ROM_Files.zip
It will create a back up of the boot files and clean /boot preserving the basic files, MoBoot and TWRP.
Then the Flash_TPToolBox_v42_to_Boot.zip can be flash.
Plus the Universal Optimize Swap Settings for the ROM installed in the Tablet.
The Universal Optimize Swap Settings copies the boot uImage for the ROM into /boot.
Keep all the downloaded files in the Micro SD card (USB Media) /external_sd ( it goes by all those names )
Any of the listed files can be flash any time and a PC is not required to maintain the battery of the Tablet.
Special Thanks to Jcsullins "The God Father of the HP Touchpad" for all the unique and great software that made it
possible to transition easily from WebOS to Android.
Click Here for my guide on How to unpack and repack the ToolBox
________________________________________________________________
/boot Partition Detail Information
________________________________________________________________
Code:
The boot partition was created with the basics to get everything working and provide
enough storage to accommodate:
TWRP/Recovery 3.2, each of the listed ROMs from Kitkat to Pie and the ToolBox.
The size of /boot is 32MB, is a fix size and can not be expanded.
Boot partition details after Automatic_Wipe_All:
Directories: size file name
bin 647.5k busybox
etc 16.1k lvm.conf
lib
lost+found
usr 1.2M lvm.static
Files: size
android.default.recovery 9 bytes
uImage 13 bytes (link to uImage.moboot )
uImage.moboot 63.8 K
uImage.Recovery 10.6 M
Total:
/dev/block/mmcblk0p13 size used available Use %
32.0M 14.1M 17.9M 44% /boot
A clean /boot has 17.9M of free space
Free Space After Pie ROM
/dev/block/mmcblk0p13
32.0M 20.8M 11.2M 65% /boot
The ToolBox is 11.2M
After flashing the ToolBox
/dev/block/mmcblk0p13
32.0M 31.6M 395.0K 99% /boot
There is only 395.0k available.
________________________________________________________________
HpTp Universal Optimize Swap Settings
________________________________________________________________
The following settings are applied to all listed ROMs and makes the Tablet work as a Laptop, not a phone.
All Developers have done a great job building the ROMs, if the same settings are apply then all performs very similar.
The hardware does not change and the basic requirements must be apply to all Android version.
There is nothing to add, but removed all the modules and only use the swap option.
The following features must be disable and can not be use:
Disable KSM, Low Memory Killer, CPU Boost, mpdecision
Changes in the Ramdisk:
The changes can be permanently modified using:
Click HERE to modify the Ramdisk
Not Permanent, Inside Android:
Click HERE to modify inside Android
File in the Ramdisk:fstab.tenderloin
Code:
/dev/store/swap none swap defaults swapprio=0, 0 0
File in the Ramdisk:init.rc
TCP Buffer increase to 6MB
Code:
on boot
# Define TCP buffer sizes for various networks
# ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax,
setprop net.tcp.buffersize.default 4194304,5242880,6291456,4194304,5242880,6291456
setprop net.tcp.buffersize.wifi 4194304,5242880,6291456,4194304,5242880,6291456
# Assign TCP buffer thresholds to be ceiling value of technology maximums
# Increased technology maximums should be reflected here.
write /proc/sys/net/core/rmem_max 6291456
write /proc/sys/net/core/wmem_max 6291456
extra_free_kbytes 20480
Code:
# system server cannot write to /proc/sys files,
# and chown/chmod does not work for /proc/sys/ entries.
# So proxy writes through init.
on property:sys.sysctl.extra_free_kbytes=*
write /proc/sys/vm/extra_free_kbytes 20480
# write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}
File in the Ramdisk:Init.tenderloin.rc
Code:
on fs
# Enable swap partition
swapon_all /fstab.tenderloin
on property:sys.boot_completed=1
# Swap Partition Settings
write /proc/sys/vm/block_dump 0
write /proc/sys/vm/dirty_background_bytes 0
write /proc/sys/vm/dirty_background_ratio 10
write /proc/sys/vm/dirty_bytes 0
write /proc/sys/vm/dirty_expire_centisecs 600
write /proc/sys/vm/dirty_ratio 20
write /proc/sys/vm/dirty_writeback_centisecs 600
write /proc/sys/vm/drop_caches 3
# change in ramdisk init.rc write /proc/sys/vm/extra_free_kbytes 20480
write /proc/sys/vm/highmem_is_dirtyable 0
write /proc/sys/vm/laptop_mode 0
write /proc/sys/vm/legacy_va_layout 0
# write /proc/sys/vm/lowmem_reserve_ratio 32 32
write /proc/sys/vm/max_map_count 65530
write /proc/sys/vm/min_free_kbytes 40960
write /proc/sys/vm/min_free_order_shift 4
write /proc/sys/vm/mmap_min_addr 32768
write /proc/sys/vm/mmap_rnd_bits 16
write /proc/sys/vm/nr_pdflush_threads 0
write /proc/sys/vm/oom_dump_tasks 0
write /proc/sys/vm/oom_kill_allocating_task 1
write /proc/sys/vm/overcommit_memory 1
write /proc/sys/vm/overcommit_ratio 50
write /proc/sys/vm/page-cluster 8
write /proc/sys/vm/panic_on_oom 0
write /proc/sys/vm/percpu_pagelist_fraction 0
write /proc/sys/vm/scan_unevictable_pages 0
write /proc/sys/vm/stat_interval 1
write /proc/sys/vm/swappiness 100
write /proc/sys/vm/vfs_cache_pressure 100
# Increase readahead buffers on MMC devices
write /sys/block/mmcblk0/bdi/read_ahead_kb 0
# CPU Scaling
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq 384000
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq 384000
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 1674000
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq 1674000
# Configure Performance
write /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor performance
write /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor performance
# Entropy
write /proc/sys/kernel/random/write_wakeup_threshold 2048
write /proc/sys/kernel/random/read_wakeup_threshold 1195
# I/O
write /sys/block/mmcblk0/queue/rq_affinity "0"
write /sys/block/mmcblk0/queue/scheduler "bfq"
________________________________________________________________
Disclaimer: I am not a developer, just a regular user like YOU that have found a way to improve the Tablet and would like others to benefit by sharing the information.
I am not the creator of any ROM, Recovery or App mentioned or used. All credits goes to the developers than have worked and provided the best ROMs there is for our Tablet and there are way too many to mentioned, but everyone know who they are! Thanks a lot to all of YOU (Developers for the HP Touchpad)!
Special Thanks:
@flintman for all his work creating TWRP Recovery and the many customs ROMs with the latest PIE.
@elginsk8r for developing and maintaining Evervolv ROMs, currently PIE.
* The stock Kernel has been modified to provide more RAM and a higher frequency.
Does seem pretty responsive, even though i have been downloading apps etc, to get it set up. I downloaded the Gapps as well not sure if that was mentioned in your post, but it will be necessary if you go with a clean install. With the DU 11/16 kernel couldnt get the play store to work. went back to the 6/18 and it worked but no videos would play...... so updated again to 11/16 and now both seem to be working ok. I think that could have been a problem with the initial ROMS, its been awhile so i cant remember but there were a few bugs there to work out as well. I will keep checking it out...
Thanks very much....much simpler
@ Touchie Pad,
Thanks for trying it out!
It will only work as intended by downloading the "Skz Kernel Optimize and Swap Partition enable" links provided.
It will not work at all by only downloading the ROM. The Dirty Unicorn ROM Kernel does not provide support for the swap file or optimized Android.
The proper Installation is:
1. Flash DU ROM "du_tenderloin-v12.5.3-20181116-0140-RC.zip" ( It has to be that in specific)
2. Flash one of the SKZ Kernel speed provided ( Without it, no optimization or use of the swap partition will happen"
3. You can install any Google Open Gapps, I have installed all version , please provide a link to the one that does not work for you and I will try it out!
4. If you want Root access you must install SuperSu and the SKZ Kernel allows System read and write ( is a complete open system)
Let me know if those were the steps you followed otherwise I will try to explain my instructions better!
Did the swap partition with the 2017.11.03 Evervolv build with nano Gapps and my tablet confuses me because it is so quick and responsive. Thank you HP_TOUCHPAD, shumash and everyone involved in making this happen.
Gborg3 said:
Did the swap partition with the 2017.11.03 Evervolv build with nano Gapps and my tablet confuses me because it is so quick and responsive. Thank you HP_TOUCHPAD, shumash and everyone involved in making this happen.
Click to expand...
Click to collapse
It is FAST and you can do a lot on it, mostly is all about the settings apply in Kernel and Ramdisk that makes the magic and giving Android OS room to breath by placing in swap unnecessary services not need it at the moment, instead of killing it and been limited to only 1GB of RAM, it can expand allocating a lot of memory to the active application. Once you close the App Android will clean up the RAM and load it from the swap file and everything goes back to normal. Android is the perfect OS for swapping.
Can you share which Kernel speed worked for you?
HP_TOUCHPAD said:
It is FAST and you can do a lot on it, mostly is all about the settings apply in Kernel and Ramdisk that makes the magic and giving Android OS room to breath by placing in swap unnecessary services not need it at the moment, instead of killing it and been limited to only 1GB of RAM, it can expand allocating a lot of memory to the active application. Once you close the App Android will clean up the RAM and load it from the swap file and everything goes back to normal. Android is the perfect OS for swapping.
Can you share which Kernel speed worked for you?
Click to expand...
Click to collapse
1782000 is what I flashed of the swap enabled kernel. That speed has been working well for me so I stuck with it. I am still using a few options in the L Speed app also. Nothing that contradicts the changes you have made. Just a few extra boosts and streamlining. The battery seems to drain more slowly also. I have not reflashed the A6 battery firmware since enabling swap and I expected the higher speed to drain more but everything is working great. No problems, no worries.
Gborg3 said:
1782000 is what I flashed of the swap enabled kernel. That speed has been working well for me so I stuck with it. I am still using a few options in the L Speed app also. Nothing that contradicts the changes you have made. Just a few extra boosts and streamlining. The battery seems to drain more slowly also. I have not reflashed the A6 battery firmware since enabling swap and I expected the higher speed to drain more but everything is working great. No problems, no worries.
Click to expand...
Click to collapse
Contrary to believe a higher speed will not drain your battery. By using this settings the Tablet will have an extremely power efficiency. A higher speed only means if the CPU needs power to run an App is not going to be limited by the governor, but when idle does not consume much power. The modules on the Kernel have been remove so there is no kernel workers checking on how much memory to clean and all that extra task that is not need it. If your tablet will run at 1836 you will see the big difference, but if you are using any App to improve anything you are not going to see the full potential benefit. All those apps are only setting things up that are already set and working in the background slowing things down. None of them are need it, this is been run as a Tablet mode setting not a Phone.
HP_TOUCHPAD said:
@ Touchie Pad,
Thanks for trying it out!
It will only work as intended by downloading the "Skz Kernel Optimize and Swap Partition enable" links provided.
It will not work at all by only downloading the ROM. The Dirty Unicorn ROM Kernel does not provide support for the swap file or optimized Android.
The proper Installation is:
1. Flash DU ROM "du_tenderloin-v12.5.3-20181116-0140-RC.zip" ( It has to be that in specific)
2. Flash one of the SKZ Kernel speed provided ( Without it, no optimization or use of the swap partition will happen"
3. You can install any Google Open Gapps, I have installed all version , please provide a link to the one that does not work for you and I will try it out!
4. If you want Root access you must install SuperSu and the SKZ Kernel allows System read and write ( is a complete open system)
Let me know if those were the steps you followed otherwise I will try to explain my instructions better![/QUOTE
I did it in that order...used pico and micro, also had the problem with the AOSP keyboard stopping which i remember having when i first flashed the ROMS. I flashed the 183 kernel..... works fast but i did have a reboot on the second day and the screen was just dark, rebooted a couple times and then reflashed the rom, and optimize, and super su files ......and all is up and running again. I was seeing -220ma drain up until i reflashed it. I will give it some more time to sort it all out, and play around with it a bit. The video playing is 1,000,000,000 times better, i love it, thanks a lot
Click to expand...
Click to collapse
Touchie Pad said:
HP_TOUCHPAD said:
@ Touchie Pad,
Thanks for trying it out!
It will only work as intended by downloading the "Skz Kernel Optimize and Swap Partition enable" links provided.
It will not work at all by only downloading the ROM. The Dirty Unicorn ROM Kernel does not provide support for the swap file or optimized Android.
The proper Installation is:
1. Flash DU ROM "du_tenderloin-v12.5.3-20181116-0140-RC.zip" ( It has to be that in specific)
All the testing that I have done and prove to be stable is on that version, I can only recommend what I have tested.
2. Flash one of the SKZ Kernel speed provided ( Without it, no optimization or use of the swap partition will happen"
All the settings are on the Kernel and Ramdisk (the boot image) no settings are on any ROM. If that Kernel is not apply no performance will happen it will be worse.
3. You can install any Google Open Gapps, I have installed all version , please provide a link to the one that does not work for you and I will try it out!
4. If you want Root access you must install SuperSu and the SKZ Kernel allows System read and write ( is a complete open system)
Let me know if those were the steps you followed otherwise I will try to explain my instructions better![/QUOTE
I did it in that order...used pico and micro, also had the problem with the AOSP keyboard stopping
Yes you are correct the Keyboard stops working in most of the ROM that is why I recommend it to install the FULL Google open Apps because, it will replace the stock Keyboard with the one original from google.
The issues has been around for as long as I can remember. The only way around is to flash another keyboard after installing pico and micro or you can do it manually. I do not know if I am allow to distribute google keyboard as a separte flash-able zip file, that will resolve the issue and all open gapps will work.
which i
remember having when i first flashed the ROMS. I flashed the 183 kernel..... works fast but i did have a reboot on the second day and the screen was just dark, rebooted a couple times and then reflashed the rom, and optimize, and super su files ......and all is up and running again. I was seeing -220ma drain up until i reflashed it.
If your tablet reboots at 1836, it may not be able to sustain that speed and it will be better to go for 1782, you will still be able to do the same. The CPU does not work at that speed all the time, only if it needs to and the cap is at 1836, but if stays that high and your CPU can not handle it then it will reboot, but others can maintain it.
I will give it some more time to sort it all out, and play around with it a bit. The video playing is 1,000,000,000 times better, i love it, thanks a lot
Click to expand...
Click to collapse
You will be able to play videos in HD 720 using youtube app and also the web browser. I use Opera as is easy to change to desktop mode and play music with the screen off. It can play for days none stop and no reboots, you can watch movies back to back a HD 720 no issues and will never close down or reboots, that is why the use of the swap file as an extra space to allocate memory resources.
But the most important do not install any app to optimize anything, it will make it worse, all the Kernel modules have been removed, there is nothing an app can do, just work in the background and make things worse.
It is set up to run as your PC or Laptop not as your Phone, that is the difference!
Click to expand...
Click to collapse
@HP_TOUCHPAD I have flashed the 1836000 swap optimized kernel and left things as they are. Interactive BFQ the preferred setup for best performance? In the Toolbox I have set it just below performance with dynamic scaling as well. This TouchPad functions like a tesseract now. Speed of light? Bwahahaha, that is nothing compared to this.
I did it in that order...used pico and micro, also had the problem with the AOSP keyboard stopping which i remember having when i first flashed the ROMS. I flashed the 183 kernel..... works fast but i did have a reboot on the second day and the screen was just dark, rebooted a couple times and then reflashed the rom, and optimize, and super su files ......and all is up and running again. I was seeing -220ma drain up until i reflashed it. I will give it some more time to sort it all out, and play around with it a bit. The video playing is 1,000,000,000 times better, i love it, thanks a lot[/QUOTE]
I updated the guide and added the Keyboard Flash file to be use with Pico and Micro and the others. My advice, if you want the Tablet to run smooth fast and stable, flash all those files in that specific order and everything will work as a brand new device.
Gborg3 said:
@HP_TOUCHPAD I have flashed the 1836000 swap optimized kernel and left things as they are. Interactive BFQ the preferred setup for best performance? In the Toolbox I have set it just below performance with dynamic scaling as well. This TouchPad functions like a tesseract now. Speed of light? Bwahahaha, that is nothing compared to this.
Click to expand...
Click to collapse
I know that is very contradicting after been accustom to use apps to get better performance, but with this set up none can be use.
The Kernel modules have been removed, there is nothing an app can do, it may even make the system unstable and worse.
The best is to disable the ToolBox in Evervolv. Is best to completely disable any background tune performance app. There is only two Governors Interactive and performance.
Is set to interactive by default it scales perfectly, no app is need it for that to happen is control my a kernel module.
Keep the system lean and simple you will get the best performance and efficiency. There is nothing to do, just don't install bloatware that will use resources without you knowing and creating lag.
HP_TOUCHPAD said:
I know that is very contradicting after been accustom to use apps to get better performance, but with this set up none can be use.
The Kernel modules have been removed, there is nothing an app can do, it may even make the system unstable and worse.
The best is to disable the ToolBox in Evervolv. Is best to completely disable any background tune performance app. There is only two Governors Interactive and performance.
Is set to interactive by default it scales perfectly, no app is need it for that to happen is control my a kernel module.
Keep the system lean and simple you will get the best performance and efficiency. There is nothing to do, just don't install bloatware that will use resources without you knowing and creating lag.
Click to expand...
Click to collapse
I am following your advice and doing as you say. Lean, simple and set to run fast has Android N running as well as kitkat did. Thank you very much @HP_TOUCHPAD
hello everyone! how does this swap thing influence flash storage? Will it degrade much faster using this way?
[/COLOR]
HepCat86 said:
hello everyone! how does this swap thing influence flash storage? Will it degrade much faster using this way?
Click to expand...
Click to collapse
With this age device and a swap partition in the flash memory being used often, it will likely degrade somewhat faster. No guarantee or prediction of how much faster because all devices behave differently. Think along the line how different TouchPads can functionally use different max processor speeds. You can have a quick and functional TouchPad that will degrade faster or one that is usable for almost nothing.
Great tutorial dude. Thanks !
Waiting to reboot after flashing rom/gapps/keyboard/kernel/su right now..
HepCat86 said:
hello everyone! how does this swap thing influence flash storage? Will it degrade much faster using this way?
Click to expand...
Click to collapse
I updated the guide with a short statement. I want to make things very easy and quick to follow but the problem is that there are more Taboo to dismantle than the settings itself.
I will try to explain in in here:
A swap file is created by default in all modern Linux installation. There is nothing new about this and everyone that has ever owned a PC knows about it.
Swapping only takes place when the system requires more memory than is physically available.
Any time you would like to see how much memory Android is using type this in on PC using adb shell or in terminal in Android:
free -h
This is Dirty Unicorns with basic ROM installed:
Code:
[email protected]:~$ adb shell
[email protected]:/ # free -h
total used free shared buffers
Mem: 828M 574M 254M 0 5.4M
-/+ buffers/cache: 568M 260M
Swap: 504M 0 504M
Is the basic ROM nothing installed.
This is Dirty Unicorn installed with Micro gapps as the guide:
Code:
[email protected]:/ # free -h
total used free shared buffers
Mem: 828M 804M 24M 0 8.9M
-/+ buffers/cache: 795M 33M
Swap: 504M 16M 488M
There is 16MB used in swap, because the system is set up to 60% swapping.
Android is the King of swapping, it does it all the time. Is not a true multitasking OS, it places background Apps in hibernation, temporally storage. Then when active it pick ups where it was left, it gets awake. The swap file is the perfect place to place anything that the user is not using at the moment and then load it later. It is not going to be use to be running the OS, it will be extremely slow to run Android or any App directly from swap space. Is only use to free RAM to run Apps and make the system stable instead of killing services and process.
The swap will help all the components by making the CPU, RAM and storage work less. To keep Android alive with only 1 GB or RAM the CPU has a lot of overhead and the RAM is been constantly in use. For example zRAM, compress Memory for swapping. The CPU has to compress and uncompressed everything that is going into zRAM plus the RAM is constantly been used with read and writes, none stop.
Is the other way around with swap, what is not need it is place there, nothing else is working , all at rest!
Hopefully this explain a little is the basic!
Steelskinz said:
Great tutorial dude. Thanks !
Waiting to reboot after flashing rom/gapps/keyboard/kernel/su right now..
Click to expand...
Click to collapse
You are welcome, but the only way to find out if the tutorial is set up properly is if the user can achieved the results.
Otherwise something got lost in the translation, hopefully it worked for you with no issues.
Update:
The Keyboard zip files got updated today February 23, to completely removed the LatinIME directory and then recreated again and copy all files the files from google Open Gapps Keyboard.
Pico works great now, it will be best to install the minimum and add Apps as you need.
The computer I used somehow deleted most of what I backed up from my TouchPad. It kept the TWRP backup of /boot in existence. For anyone with ample use and data on theirs this could aggravating but it caused me to do a cleaner clean install. I did not remember which apps I had on mine so I now have less than 80 total apps on mine and after flashing the full wipe zip and the swap partition creation zip I restored my backup of /boot so I had a TouchPad Toolbox uImage available in moboot and a spectacularly quickly performing tablet. Minimizing excess like this made my TouchPad as quick and responsive as the new iPad one of my roommates recently got.
I have one suggestion and one question -
Setup instructions for swap will be more understandable if accompanied by full written step-by-step instructions.
What are your thoughts on the effects of setting the number of background processes maximum to one or two after boot?
Swap allows for more to be done without lagging but these are still 8 year old tablets so I am curious about the expert opinions. @HP_TOUCHPAD and @shumash
It would be helpful to hear both of your thoughts on this matter.
Gborg3 said:
The computer I used somehow deleted most of what I backed up from my TouchPad. It kept the TWRP backup of /boot in existence.
When you back up the tablet using TWRP, you have to select the partitions /System and /Data. Boot is not necessary at all and you do not want to back up or restore boot in this case as it will restore LVM old configuration files. That is the reason that this guides wipes and reformat /boot and places TWRP on it.
For anyone with ample use and data on theirs this could aggravating but it caused me to do a cleaner clean install.
A clean install is the best option to do, there are Apps that will back up only the Apps if you do not use the Play Store
I did not remember which apps I had on mine so I now have less than 80 total apps on mine and after flashing the full wipe zip and the swap partition creation zip I restored my backup of /boot so I had a TouchPad Toolbox uImage available in moboot and a spectacularly quickly performing tablet.
After you do apply the Full wipe zip flash file it is not a good idea at all to restore /boot, and there is no need.
Boot keeps the uImages of the ROM and LVM ( storage partition configuration and size ). It could keep the old partition layout, I have not tried that myself.
Minimizing excess like this made my TouchPad as quick and responsive as the new iPad one of my roommates recently got.
The less Apps you have or keep it to what you really needs, the faster the Tablet will be. This apply to any computer. The worse is to have bloatware, most run in the background or create process that keeps the CPU working most of the time.
I have one suggestion and one question -
Setup instructions for swap will be more understandable if accompanied by full written step-by-step instructions.
What area do you think that must be written better?
1. How to back up and restore.
2. Or the process to flash the Wipe_ALL zip flash file.
What are your thoughts on the effects of setting the number of background processes maximum to one or two after boot?
The background process limit that you can setup under Developers options is how many Apps Android will keep in pause (hibernation), when you open another app, it has nothing to do with process that are launch to collect data or updates. Those are terminal commands to apply to each specifically installed Apps to prevent it from activating its data collection. Keep in mind Android and many Apps are free, but in exchange off data mining.
Swap allows for more to be done without lagging but these are still 8 year old tablets so I am curious about the expert opinions. @HP_TOUCHPAD and @shumash
It would be helpful to hear both of your thoughts on this matter.
Click to expand...
Click to collapse
Can you provide the link to the experts options? """ Corrections , Gborg3 said opinions my brain captured options """" This is a great example when humans interact!
All the flash files on provided on this guide will apply all the settings that any expert can do by entering line y line in a terminal window.
The tablet is old but the basic of streaming HD video, using the Web, running Apps, all that can be done as with any other device. The most important is to have the most current ROM and the open gapps installed.

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