[KERNEL] nAa-jb-03 [23/11/12] Custom JB kernel + CWM Recovery - Sony Ericsson XPERIA X10 Mini

Before unlocking your bootloader, read this thread
If you brick your device, you are the sole responsible.
Preface:
Read through this post. Don't rush into flashing. Be sure you understand the process before you start
This is a custom kernel developed for Android Jellybean
Do NOT try this kernel on other Android versions - you are totally unsupported
This kernel introduces custom mtd partitioning with larger /system partition to hold the extra JB calories. If you are moving from another custom kernel to this one, you MUST first format /system /data and /cache via the embedded CWM recovery
Features:
Forked from nAa-ics-04 (all ICS features are already in there)
Built with linaro-4.7.1 toolchain
CWM-Based Recovery 5.5.0.4
Custom mtd partitioning scheme suitable for JB
Modular recovery flashing support (more on that to come...)
Tracing support for JB
pmem: bring up2date with CAF 2.6.38
genlock/kgsl fixes
Triple buffering support for msm framebuffer
Much more RAM for improved multitasking experience (shakira: 186MB, robyn/mimmi: 187MB)
FAQ:
If you have any issues, please read the FAQ thread first: http://forum.xda-developers.com/showthread.php?p=30297163
Requirements:
Unlocked bootloader --> http://forum.xda-developers.com/showthread.php?t=1254225
MiniCM10 or any JB, source-based ROM (install this kernel first, format /system, /data and /cache, then install the JB ROM)
Flashtool tested to be working with your phone, e.g. from here: http://www.multiupload.com/GYL7A7XQBT Original flashtool thread: http://forum.xda-developers.com/showthread.php?t=920746
Install:
Backup
Unlock your bootloader as described here: http://forum.xda-developers.com/showpost.php?p=17384177&postcount=3 or here: http://forum.xda-developers.com/showthread.php?t=1254225
[*]Download the kernel ftf file from here and move it to Flashtool\firmwares so that Flashtool can pick it up
Flash the kernel via Flashtool
Reboot and you should see the kernel boot animation
[*] (First time only) Get into recovery and format /system /cache and /data manually
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Uninstall:
Flash back to stock using SEUS.
OR
[*] Format /system /data and /cache via CWM and THEN flash another kernel via Flashtool
Notes:
Dualtouch (for synaptics):
If you want to enable the fake DT by dx (instead of andrej456's which is the default), you have to insert the following line in the /system/etc/hw_config.sh file:
insmod /system/lib/modules/synaptics_i2c_rmi4_dt.ko
Click to expand...
Click to collapse
If you want to remove the fake DT altogether, insert the following line in the /system/etc/hw_config.sh file:
insmod /system/lib/modules/synaptics_i2c_rmi4_no_dt.ko
Click to expand...
Click to collapse
Sources:
The linux kernel is GPL'ed, everyone who does modifications should make them publicly available.
https://github.com/nobodyAtall/nAa-kernel-jb
Donate:
If you are enjoying my work please consider donating:
.
Donations are voluntary but allow me to spend more time on this project.​
Disclaimer:
I can't be held responsible if this Kernel bricks your device or makes it explode in your hands! Use it at your own risk!
​

---

Changelog:
### nAa-jb-02
* Ramdisk changes
* Increase vm_max_readahead to 1024Kb
### nAa-jb-01
* Forked from nAa-ics-04
* Tracing support for JB
* pmem: bring up2date with CAF 2.6.38
* genlock/kgsl fixes
* Triple buffering support for msm framebuffer
* Much more RAM
* Custom mtd partitioning for JB

---

MTD partitioning for Jellybean:
localhost / # cat /proc/mtd
dev: size erasesize name
mtd0: 10500000 00020000 "system"
mtd1: 00500000 00020000 "cache"
mtd2: 0bfc0000 00020000 "userdata"
mtd3: 00a00000 00020000 "recovery"
localhost / # df -h
...
/dev/block/mtdblock0 261.0M 238.1M 22.9M 91% /system
/dev/block/mtdblock2 191.8M 86.5M 105.3M 45% /data
/dev/block/mtdblock1 5.0M 780.0K 4.2M 15% /cache
...

---

useful links :
[DEV] miniCM10 debug only thread (shakira, robyn and mimmi)
$find other useful link in miniCM7/9 miniFAQs $
Perfomance :
recomended settings :
perf related :
CPU: keep default, but enable UnderVolting (and set on boot if you don't OverClock) (settings>performance>CPU)
RAM : to optimize RAM usage, use KSM, zram (18%, default) and allow purging of assets (settings>performance>memory managment)
I/O : keep NOOP, this is the default and the best for flash memory
other :
in settings>developer options
enable USB debugging,
debug notification,
set all animations to 0.5 (electron beam CRT animation will happen no more)
enable "kill with back button"
________________
for whose who feel the system slow and laggy, just try the SWAP (SDcard class6+ recommended)
SWAP, there is two "kind" of swap : using a partition on the SDcard, or using a swap file
both are good, but some SDcard/phones react better with the one or the other​
let us start with the partition way : it is more complicated than the file method, but as some advantages
pros: once it is set up, no need to care about it anymore, the SDcard can be mounted to PC easily without latency
cons: a little complicated to set up, and once it's done, it is as complicated to revert as to set up; to change swap size, you need to repeat the process (formating and partitioning SDcard)
needs a clean install of miniCM10:
flash JB kernel
in CWM, go to mount&storage :
then, format /system, /data and /cache (so that kernel can use the new partitions size) any data on phone memory will be lost
set up your swap:
==> go to /advanced/Partition SD Card
if you don't want to use a2sd, then choose the minimal size for ext, and the size you want for SWAP
it will FORMAT your SDcard ! any data on SDcard will be LOST
and install the rom
swap partition should work
what doesn't work is the swap info menu
to revert : format SDcard in phone settings : it will FORMAT your SDcard ! any data on SDcard will be LOST​
____________________
now, the swap file way : it is really simpler than the swap partition, works great but has some drawbacks
pros: easy to set up, easy to revert, and the size can be choosen at wish at anytime (in settings>performance>memory>Swap settings)
cons: high latency when mounting SDcard to pc, it can take forever (really quicker to use CWM mount and storage capability to use the SD on the PC, than using android way)
you must perform a clean install of miniCM10 (by formating /system, /data and /cache) any data on phone memory will be lost
install the rom zip, the gapps, and boot up your phone
set it up
once your rom is ready to use,
go to settings>performance>memory>Swap settings
choose "enabled"
choose the size
allow system to get SU permissions
wait for the pop up "swap enabled"
enjoy, it is simple and can be disabled on wish​
to see if you swap works, open terminal, and type the following :
Code:
free

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Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!111

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I have a problem trying to go from 2.3 to 4.1:
- i flash the new JB kernel
- restart the phone
- when is loading the "nAa" startup, exact when its on "freed" of "freedom" it freeze and reboot, i cant go into in cwm to flash the JB
if i reflash 2.3 kernel, it boot ok.
any has the same problem?
ty.
(my english suck, sry )
SOLVED: http://forum.xda-developers.com/showpost.php?p=30329524&postcount=16 , thanks he.

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after i flashed kernel, the phone turns on but nothing happens. the boot logo doesnt show up. then i tried to flash the ics kernel, wich i used before, and its the same. repaired the phone with pc companion and tried again, same result. :-/ if im condemned to use stock kernel and rom, ill break the phone -.-

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MiniCM10 on the way
Sent from my Nexus One using Tapatalk

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This Guy can do Anything... nobodyAtall is genious.

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First of all, thanks for your great work! :victory:
Then, just a question: i have already unlocked bootloader (in fact, i put MiniCM7-2.2.1 & nAa-13 Custom Gingerbread kernel - both by nAa - on my X10 Mini)...should i to repeat the process describe here? ---> http://forum.xda-developers.com/showthread.php?t=1254225 ?
If i don't understand badly, i have "only" to perform factory reset, wipe cache partition and wipe dalvik cache from recovery, isn't it? Then flash custom kernel & ROM. Like described there ---> http://forum.xda-developers.com/showpost.php?p=30329524&postcount=16
Thanks again
Greetings from Italy

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sith.warrior said:
First of all, thanks for your great work! :victory:
Then, just a question: i have already unlocked bootloader (in fact, i put MiniCM7-2.2.1 & nAa-13 Custom Gingerbread kernel - both by nAa - on my X10 Mini)...should i to repeat the process describe here? ---> http://forum.xda-developers.com/showthread.php?t=1254225 ?
If i don't understand badly, i have "only" to perform factory reset, wipe cache partition and wipe dalvik cache from recovery, isn't it? Then flash custom kernel & ROM. Like described there ---> http://forum.xda-developers.com/showpost.php?p=30329524&postcount=16
Thanks again
Greetings from Italy
Click to expand...
Click to collapse
you don't have to relock or reunlock your bootloader, follow the instructions of format /system and others in cwm menu, and then flash the jb kernel. Happy testing

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Hey nAa, the link you gave in the OP to download the kernel is the E10 kernel.
That's why many people complain that didn't work.
I downloaded the right kernel on minicm.googlecode.com
EDIT: This thread is right, on MiniCM10 for x10 mini pro Thread, you send people to this Kernel, instead the u20 kernel. that's the thing

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first of all... i installed jb via recovery...then installed kernel and came upto home of launcher but the touchscreen is unresponsive...i mean the side buttons home keys etc. work fine but the touchscreen doesnt...help....

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Password Protections
Hey nAa, is there anyway so we can password protect the clockworkmod recovery?? Just for security reasons (prevent someone from wiping the data partition)....

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Hi,for x10 mini the kernel is E10 or u20?

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mauwri37 said:
Hi,for x10 mini the kernel is E10 or u20?
Click to expand...
Click to collapse
Take off your back-cover, you will find a sticker with the model-number of your phone... Download the kernel corresponding to that number.
X10 Mini = E10 (i or a) = Robyn
X10 MiniPro = U20 (i or a) = Mimmi

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how to access cwm in this kernel!!! help.... menu button? back button?? just a bootloap..

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Flashed wrong kernel
Guys,
I know this will be a really noob question, but still... After spending some time reading this guide, I ended up dowloading X10 Mini (e10 or whatsoever kernel and I installed it to my u20 (X10 Mini Pro. Now FlashTool gives me error - flashing aborted messages every time I want to install the correct kernel.
Is there anything /i can do?
Thanks,
Regards

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kog said:
Guys,
I know this will be a really noob question, but still... After spending some time reading this guide, I ended up dowloading X10 Mini (e10 or whatsoever kernel and I installed it to my u20 (X10 Mini Pro. Now FlashTool gives me error - flashing aborted messages every time I want to install the correct kernel.
Is there anything /i can do?
Thanks,
Regards
Click to expand...
Click to collapse
Yes, just flash the correct kernel and you should be fine.

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nobodyAtall said:
Yes, just flash the correct kernel and you should be fine.
Click to expand...
Click to collapse
If didn't work, try use SEUS to put phone with default kernel and then try using u20i kernel. Loock for my post above you find it.