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Hi all,
I have worked for a long time with ROMs with different origin (AOSP, Sammy based, CM 10.1, ...) however I'm unable to keep the ROM fresh and sharp for a long time. After a couple of weeks, delays start to occur randomly and the "snappiness" is gone.
In my opinion the apps have nothing to do with it as I restore them immediately after I install a new ROM (with settings).
So the question : do you have any maintenance tasks / tips I should regularly complete ?
DirtyWizard said:
Hi all,
I have worked for a long time with ROMs with different origin (AOSP, Sammy based, CM 10.1, ...) however I'm unable to keep the ROM fresh and sharp for a long time. After a couple of weeks, delays start to occur randomly and the "snappiness" is gone.
In my opinion the apps have nothing to do with it as I restore them immediately after I install a new ROM (with settings).
So the question : do you have any maintenance tasks / tips I should regularly complete ?
Click to expand...
Click to collapse
Why not regularly reflash the original rom or at least its bare bones nandroid and your TB backup .
jje
JJEgan said:
Why not regularly reflash the original rom or at least its bare bones nandroid and your TB backup .
jje
Click to expand...
Click to collapse
Would be an option to consider ! However still not clear to me what causes this .. When I look at the OS on my PC, I do know where the delaying factors are to be found (e.g. disk fragmentation, (uninstalled) software leaving files and registry entries, ...) and I can fix those ! I would like to do the same for my Android ROM.
DirtyWizard said:
Would be an option to consider ! However still not clear to me what causes this .. When I look at the OS on my PC, I do know where the delaying factors are to be found (e.g. disk fragmentation, (uninstalled) software leaving files and registry entries, ...) and I can fix those ! I would like to do the same for my Android ROM.
Click to expand...
Click to collapse
There is this app on the playstore that uses TRIM command called fstrim to flush out unused memory/storage (it's like a disk defrager on windows) thus making the device a little snappier more info about this app here: http://forum.xda-developers.com/showthread.php?t=2104326
You should also regularly clean your app cache (they're like temporary files created by apps just like in windows) by using apps like History Cleaner, Clean Master etc. If you're an advanced user i also recommend the app SD Maid. It cleans various system directories including your ext sdcard (it cleaned around 1gb when i first ran it) so be cautious and do research it's functions too before you use the app.
Without any explanation as to why, I found reflashing kernel keeps thing feeling fresher, and once a month I format everything including internal sd, and re-flash my rom, then restore only minimal system data via xml......txt/logs/WiFi ap etc
The more you modify Samsung Roms, the worse they perform imho
Likewise AOSP Roms, though they are always more snappy but also more bug prone, that is just my opinion though, we all end up with what keeps us happy, tweaked how we want it, so comparisons yet again don't mean a lot, just experience
Thanks for the responses so far .. I'm going to use the Lagfix for new and see how that advances. SD Maid I already use quite some time .. It is a bit sad to see that the OS can slow down so quickly.. although I have to admit I'm constantly experimenting and testing apps but I don't see an actual reason for the returning delay..
I'm afraid I'll have to get used to it or do a regular re-flash..
Hey everyone, I just wanted to make a guide on how to improve your battery life on a custom nougat rom with solid performance and little to no heating issues. I use this method after many trials and errors after I only got 2.5-3hrs of SOT after leaving stock and flashing custom roms. However, after Magisk 14.3 I no longer got the frequent safety issue that plague me for months and I also notice my battery life starting to improve.
Please Note: I have not tested this on marshmallow custom roms or any stock Moto G4/G4 Plus rom (6.0 and above) but feel free to try and let me know if it works. Also this method could be duplicated on other devices.
Disclaimer: I'm not responsible for any bricked or damage device you used my method. I give all credit to the developers who does a fantastic job creating all the things they do for the root community. Thank you!
Follow the following tips if your on a custom nougat rom (Ex: LineageOS, Resurrection Remix, InvictaOS, etc.).
1. Download a custom Nougat (7.0+) rom for your device and go through the initial set up as normal. (I personally use InvictaOS for my device which is very stable). Note: Do not install any root app that modifies system files!
2. Download the following files: Ex kernel , Addon-su- remove-14.1.zip , Magisk 14.3 (1437).zip.
2. Reboot into recovery and install the latest Ex kernel for nougat. This kernel is quite stable and works universally with most custom roms. (It also keeps the phone sightly cooler during heavy usage).
3. Next, flash the addonsu-remove.zip file to remove any traces of root from your room as it will interfere with Magisk which could result in your device randomly rebooting. Afterwards, flash magisk 14.3.zip (This version of magisk pass safetynet on a consistent basis in my experience). You can now reboot your device.
4. Once your back into your phone, launch magisk manager and check if your pass safetynet (which means you did it right) now head to the download section of the app and install the module for "Sysconfig Patcher". A solid tweak improves screen off time by putting the battery hog known as Google Play Service into doze.
This is a bonus step but it's well worth it if you want to maximize battery life:
5A. Buy the official Ex kernel app from the play store. This allows you more power over your kernel settings than the alternatives. Next download the kernel turnables "lightning blade" in addition to our device, this works on allow phones using a snapdragon 617 processor like the G4/G4 Plus. Download the zip file and follow the instructions in the thread very carefully. This will give you much improved screen on time by using less cores unless necessary to maintain a smooth experience. Additionally, It keeps the phone cooler during heavy usage coupled with ex kernel.
5B. Now you can play around with the kernel settings if you like. My personal settings is more gear to my average daily use. Under CPU tab I change my governor turnable to lightning blade from the previous step, under GPU tab I use Simple_ondemand as the gpu governor. Under memory tab, I disable both KSM and KSM Deferred Timer and enable Low Memory Killer. Then under miscellaneous I change TCP to Westwood, increase the i/o schedule read ahead time to 512, and press wake blocks to toggle all three wake blocks. If you want to keep these changes make sure to hit apply on boot for every changes made within the app. You can undo all this to return to ex kernel's stock settings by clearing ex kernel manager's app data and rebooting.
Important: If you follow my steps above you should have better battery life. Try not to install Magisk modules what is not compatible with Magisk 14.0 and above as it may cause your device to randomly reboot and bootloop when powering on.
Please share your battery stats!
SpacesungGalaxy J727P
(J727PVPU3ARC2)Disclaimer:
I am not responsible for what you do with your device. If you decide to flash this software then you are accepting any risks involved. Including, but not limited to; bricking your device, missing alarms, missing calls, loss of your job, repossession of your car, and maybe even spilt milk.
About:
This is very much a personal project that I felt others would appreciate. I enjoy retro gaming very much, and as some of you may know, emulation is very CPU intensive. Hence the reason for making Spacesung. My goal was a stock rom that was lag free, debloated, and buttery smooth for gaming. I believe I have achieved this, and so, I give this to the you, to enjoy, use, modify, and share at your discretion.
Features
•Deodexed
•Debloated- I have removed all unnecessary Samsung, Google, and Amazon apps.
•Removed all Amazon symlinks. (Libs are next.)
•Deknoxed- Note: Some leftovers may be present. If you find any please let me know.
•Rooted- SuperSu is included.
•Up to 10gb+ of internal storage is available. This number will change depending on what you install afterwards, and what you have already stored on your internal SD.
Instructions:
1. Download the ROM from here.
2. Download GoogleKeyboard. You will need this after installation because the Samsung keyboard has been removed.
3. Make sure both files are on your internal, or external storage. Either is fine.
4. Reboot to recovery and wipe, data, system, cache, & dalvik cache.
5. Install Spacesung.
6. Reboot and wait. SuperSU will cause it to boot loop once. This is just root sinking it's teeth into the system. Don't interrupt it. After the aforementioned loop, it'll take about ~5-8min to start up. This only applies to the very first boot. Afterwards it only takes ~10 seconds to startup.
7. Skip all the setup steps that require typing. This can be done after you install GoogleKeyboard.
8. Enjoy!
Special notes:
*Google play, and Google services are still installed. You can disable both if you want to. You must disable it as a device administrator under the security options first, or it will be grayed out.
*Syncing will not work, since it has also been removed.
*Device encryption and secure storage shouldn't work either.
*Chrome is still installed. It can also disabled. There is no way to remove it yet, as the 7.0 framework uses it for webview. I'm still searching for a workaround to save more space.
*Anything not listed, should be working perfectly. If something is broken, let me know. And please remember, that anything already listed is not a bug, it is intentional. If you have any issues with 3rd party apps, I will try to help you, though I make no promises.
New!: Spacesung Oreo Debloat ScriptNotes:
1. Flash in recovery after the first boot.
2. Wipe dalvik cache ONLY! (Oreo cleans up data from removed apps automagically after rebooting.)
3. Profit!
*If you want to modify what's removed, simply open the updater-script with a text editor (preferably Notepad++) and add or remove the # sign. All apps in the stock Oreo system are listed in alphabetical order. This script should be safe to flash as is. Touchwiz, Theme store, Google play, and Samsung keyboard, are not removed by default. No files will be added to your OS either.
Ex.
delete_recursive("/system/app/AmazonMP3"); ← This would be deleted. #delete_recursive("/system/app/AmazonMP3"); ← This would be ignored.
*As always, anything that I make is free to use for other projects, public or personal, without my permission. No need to ask me, just do it! Credit is always appreciated, though not required.
J727P
Spaceminer said:
SpacesungGalaxy J727P
(J727PVPU3ARC2)Disclaimer:
I am not responsible for what you do with your device. If you decide to flash this software then you are accepting any risks involved. Including, but not limited to; bricking your device, missing alarms, missing calls, loss of your job, repossession of your car, and maybe even spilt milk.
About:
This is very much a personal project that I felt others would appreciate. I enjoy retro gaming very much, and as some of you may know, emulation is very CPU intensive. Hence the reason for making Spacesung. My goal was a stock rom that was lag free, debloated, and buttery smooth for gaming. I believe I have achieved this, and so, I give this to the you, to enjoy, use, modify, and share at your discretion.
Features
•Deodexed
•Debloated- I have removed all unnecessary Samsung, Google, and Amazon apps.
•Removed all Amazon symlinks. (Libs are next.)
•Deknoxed- Note: Some leftovers may be present. If you find any please let me know.
•Rooted- SuperSu is included.
•Up to 10gb+ of internal storage is available. This number will change depending on what you install afterwards, and what you have already stored on your internal SD.
Instructions:
1. Download the ROM from here.
2. Download GoogleKeyboard. You will need this after installation because the Samsung keyboard has been removed.
3. Make sure both files are on your internal, or external storage. Either is fine.
4. Reboot to recovery and wipe, data, system, cache, & dalvik cache.
5. Install Spacesung.
6. Reboot and wait. SuperSU will cause it to boot loop once. This is just root sinking it's teeth into the system. Don't interrupt it. After the aforementioned loop, it'll take about ~5-8min to start up. This only applies to the very first boot. Afterwards it only takes ~10 seconds to startup.
7. Skip all the setup steps that require typing. This can be done after you install GoogleKeyboard.
8. Enjoy!
Special notes:
*Google play, and Google services are still installed. You can disable both if you want to. You must disable it as a device administrator under the security options first, or it will be grayed out.
*Syncing will not work, since it has also been removed.
*Device encryption and secure storage shouldn't work either.
*Chrome is still installed. It can also disabled. There is no way to remove it yet, as the 7.0 framework uses it for webview. I'm still searching for a workaround to save more space.
*Anything not listed, should be working perfectly. If something is broken, let me know. And please remember, that anything already listed is not a bug, it is intentional. If you have any issues with 3rd party apps, I will try to help you, though I make no promises.
*As always, anything that I make is free to use for other projects, public or personal, without my permission. No need to ask me, just do it! Credit is always appreciated, though not required.
Click to expand...
Click to collapse
One question did you add any kernel tweaks to your build ? An why can't I find any system tweaks ? Sorry two Questions !!
peter couniaz said:
One question did you add any kernel tweaks to your build ? An why can't I find any system tweaks ? Sorry two Questions !!
Click to expand...
Click to collapse
There are no kernel tweaks. I have been trying to build a custom kernel from source for this, however, ubuntu/virtualbox are not playing nice with my hardware. (Ubuntu stops using my CPU completely after ~10min.) This is just a very bare bones stock Rom, with Trebuchet as a launcher. There are no special system tweaks added to it. Regarding that topic, I am working on tethering, it has been very difficult though. Samsung's smali files are a huge mess to work with. I can get the "you are not subscribed to this service" notification to stop, but tethering still won't start. Are you missing any options that would normally be available on stock? If so, I would definitely like to fix that ASAP.
J727P
Spaceminer said:
There are no kernel tweaks. I have been trying to build a custom kernel from source for this, however, ubuntu/virtualbox are not playing nice with my hardware. (Ubuntu stops using my CPU completely after ~10min.) This is just a very bare bones stock Rom, with Trebuchet as a launcher. There are no special system tweaks added to it. Regarding that topic, I am working on tethering, it has been very difficult though. Samsung's smali files are a huge mess to work with. I can get the "you are not subscribed to this service" notification to stop, but tethering still won't start. Are you missing any options that would normally be available on stock? If so, I would definitely like to fix that ASAP.
Click to expand...
Click to collapse
Thank you for getting back to me an good luck with your build on a custom kernel for this phone we can really use one !! Thanks again !
Spaceminer said:
SpacesungGalaxy J727P
(J727PVPU3ARC2)Disclaimer:
I am not responsible for what you do with your device. If you decide to flash this software then you are accepting any risks involved. Including, but not limited to; bricking your device, missing alarms, missing calls, loss of your job, repossession of your car, and maybe even spilt milk.
About:
This is very much a personal project that I felt others would appreciate. I enjoy retro gaming very much, and as some of you may know, emulation is very CPU intensive. Hence the reason for making Spacesung. My goal was a stock rom that was lag free, debloated, and buttery smooth for gaming. I believe I have achieved this, and so, I give this to the you, to enjoy, use, modify, and share at your discretion.
Features
•Deodexed
•Debloated- I have removed all unnecessary Samsung, Google, and Amazon apps.
•Removed all Amazon symlinks. (Libs are next.)
•Deknoxed- Note: Some leftovers may be present. If you find any please let me know.
•Rooted- SuperSu is included.
•Up to 10gb+ of internal storage is available. This number will change depending on what you install afterwards, and what you have already stored on your internal SD.
Instructions:
1. Download the ROM from here.
2. Download GoogleKeyboard. You will need this after installation because the Samsung keyboard has been removed.
3. Make sure both files are on your internal, or external storage. Either is fine.
4. Reboot to recovery and wipe, data, system, cache, & dalvik cache.
5. Install Spacesung.
6. Reboot and wait. SuperSU will cause it to boot loop once. This is just root sinking it's teeth into the system. Don't interrupt it. After the aforementioned loop, it'll take about ~5-8min to start up. This only applies to the very first boot. Afterwards it only takes ~10 seconds to startup.
7. Skip all the setup steps that require typing. This can be done after you install GoogleKeyboard.
8. Enjoy!
Special notes:
*Google play, and Google services are still installed. You can disable both if you want to. You must disable it as a device administrator under the security options first, or it will be grayed out.
*Syncing will not work, since it has also been removed.
*Device encryption and secure storage shouldn't work either.
*Chrome is still installed. It can also disabled. There is no way to remove it yet, as the 7.0 framework uses it for webview. I'm still searching for a workaround to save more space.
*Anything not listed, should be working perfectly. If something is broken, let me know. And please remember, that anything already listed is not a bug, it is intentional. If you have any issues with 3rd party apps, I will try to help you, though I make no promises.
*As always, anything that I make is free to use for other projects, public or personal, without my permission. No need to ask me, just do it! Credit is always appreciated, though not required.
Click to expand...
Click to collapse
Downloaded and installed nicely. Tried to switch superuser with magisk but no go, need stock boot image but all in all a good clean debloated Rom. You should include a keyboard though, your link did not work so I downloaded one on my PC and transferred to internal sd and installed. If you can get magisk instead of superuser, you will have a winner !
Sent from my SM-J727P using Tapatalk
J727P
Spaceminer said:
SpacesungGalaxy J727P
(J727PVPU3ARC2)Disclaimer:
I am not responsible for what you do with your device. If you decide to flash this software then you are accepting any risks involved. Including, but not limited to; bricking your device, missing alarms, missing calls, loss of your job, repossession of your car, and maybe even spilt milk.
About:
This is very much a personal project that I felt others would appreciate. I enjoy retro gaming very much, and as some of you may know, emulation is very CPU intensive. Hence the reason for making Spacesung. My goal was a stock rom that was lag free, debloated, and buttery smooth for gaming. I believe I have achieved this, and so, I give this to the you, to enjoy, use, modify, and share at your discretion.
Features
•Deodexed
•Debloated- I have removed all unnecessary Samsung, Google, and Amazon apps.
•Removed all Amazon symlinks. (Libs are next.)
•Deknoxed- Note: Some leftovers may be present. If you find any please let me know.
•Rooted- SuperSu is included.
•Up to 10gb+ of internal storage is available. This number will change depending on what you install afterwards, and what you have already stored on your internal SD.
Instructions:
1. Download the ROM from here.
2. Download GoogleKeyboard. You will need this after installation because the Samsung keyboard has been removed.
3. Make sure both files are on your internal, or external storage. Either is fine.
4. Reboot to recovery and wipe, data, system, cache, & dalvik cache.
5. Install Spacesung.
6. Reboot and wait. SuperSU will cause it to boot loop once. This is just root sinking it's teeth into the system. Don't interrupt it. After the aforementioned loop, it'll take about ~5-8min to start up. This only applies to the very first boot. Afterwards it only takes ~10 seconds to startup.
7. Skip all the setup steps that require typing. This can be done after you install GoogleKeyboard.
8. Enjoy!
Special notes:
*Google play, and Google services are still installed. You can disable both if you want to. You must disable it as a device administrator under the security options first, or it will be grayed out.
*Syncing will not work, since it has also been removed.
*Device encryption and secure storage shouldn't work either.
*Chrome is still installed. It can also disabled. There is no way to remove it yet, as the 7.0 framework uses it for webview. I'm still searching for a workaround to save more space.
*Anything not listed, should be working perfectly. If something is broken, let me know. And please remember, that anything already listed is not a bug, it is intentional. If you have any issues with 3rd party apps, I will try to help you, though I make no promises.
*As always, anything that I make is free to use for other projects, public or personal, without my permission. No need to ask me, just do it! Credit is always appreciated, though not required.
Click to expand...
Click to collapse
You may want to try this Build I Built on TomeGJ7p's WIFI BUILD it's a good one I THINK YOU WILL LIKE IT !
https://mega.nz/#!aUlU3CiD!QERLRerFDA8497aKopbqZqZh-ZSTVfZ9GhfQQy2mBrs
PS if you like it you can use it to Build on you have mine an tomeGJ7p's Blessing !!
Spaceminer said:
There are no kernel tweaks. I have been trying to build a custom kernel from source for this, however, ubuntu/virtualbox are not playing nice with my hardware. (Ubuntu stops using my CPU completely after ~10min.) This is just a very bare bones stock Rom, with Trebuchet as a launcher. There are no special system tweaks added to it. Regarding that topic, I am working on tethering, it has been very difficult though. Samsung's smali files are a huge mess to work with. I can get the "you are not subscribed to this service" notification to stop, but tethering still won't start. Are you missing any options that would normally be available on stock? If so, I would definitely like to fix that ASAP.
Click to expand...
Click to collapse
This ROM is totally debloated. I went back and tried it again, very smooth, very fast but Contacts would not sync so I could not call anyone. Google account would not sync so no play store apk update from old account.Samsung account missing so no way for me to bring certain apks and utilities from stock ROM. Bare-bones android op. But I will keep it on my sd card.
PS
I just remembered those system apks that are missing that I need, I could have installed thru Titanium Bkup! [emoji846]
Sent from my SM-J727P using Tapatalk
is there anyway you can upload a copy with sync enabled and would it be possible to also use a modified or even stock touchwiz launcher?? and Magisk... If I could have sync magisk and touchwiz Id run this as my daily driver
JeepinxJosh said:
is there anyway you can upload a copy with sync enabled and would it be possible to also use a modified or even stock touchwiz launcher?? and Magisk... If I could have sync magisk and touchwiz Id run this as my daily driver
Click to expand...
Click to collapse
You can flash gapps for sync, I don't have the sync apps on hand or I would attach them. I've flashed pico without issue. I forget which one(s) has the sync apps, it's possible that all of them do. Magisk can be installed fairly easily. Grab Magisk v16. Open SuperSU, look in settings and choose full unroot. Select yes when asked to restore the stock boot image, and no to recovery. As soon as it reboots, hold Vol↑+Home to catch TWRP, then flash Magisk. As for Touchwiz, try installing the one in the attachments below. If it gives you any problems, let me know. If I update anything I will definitely be using Magisk, and I'll keep these options in mind for separate builds in the future.
Spaceminer said:
You can flash gapps for sync, I don't have the sync apps on hand or I would attach them. I've flashed pico without issue. I forget which one(s) has the sync apps, it's possible that all of them do. Magisk can be installed fairly easily. Grab Magisk v16. Open SuperSU, look in settings and choose full unroot. Select yes when asked to restore the stock boot image, and no to recovery. As soon as it reboots, hold Vol↑+Home to catch TWRP, then flash Magisk. As for Touchwiz, try installing the one in the attachments below. If it gives you any problems, let me know. If I update anything I will definitely be using Magisk, and I'll keep these options in mind for separate builds in the future.
Click to expand...
Click to collapse
Thanks man
I used this rom as the base for my gaming phone and then stripped it down to only system framework apps. If the latter were removed it would crash the phone. Anything I removed to get to that point, had minimal impact on space (fifty or so megs) and bootup times compared to a fully loaded phone (5 seconds). Spaceminer did an excellent job on this.
Video here of bootup comparison between two Galaxy J7 Perx, one with the Spacesung rom:
https://www.youtube.com/watch?time_continue=2&v=z9bcqwLVIAA
Is the Oreo stock ROM a battery chugger?
It's just me or anybody have experienced less stamina from their battery with the Oreo stock ROM even with all the de-bloat applied. Compared to the latest ARG2 Nougat it's almost halves the lifetime of the battery, even when on standby it consume a lot more.
ct760ster said:
It's just me or anybody have experienced less stamina from their battery with the Oreo stock ROM even with all the de-bloat applied. Compared to the latest ARG2 Nougat it's almost halves the lifetime of the battery, even when on standby it consume a lot more.
Click to expand...
Click to collapse
Have you tried turning off all the scanning features? Also in the dev options, the switch that keeps mobile data always on, is enabled by default. It's normally off in Nougat. Turning that off should help tremendously.
That being said, I do think Oreo is a battery hog, and I don't think there's any performance gain over Nougat. My best benchmarks with this phone are running Nougat (ARG2), debloated. My battery gives me 51-52hrs on Nougat, with 17-18hrs of that being screen on time. I plan on running Oreo this week to get a good comparison between them.
This is LineageOS 16 for both versions (LTE and WiFi-only) of the Samsung Galaxy Tab A (2016).
All work for this ROM was done by @Valera1978 - I only did the builds based on the current LineageOS sources to make the security fixes available for this nice ROM. So all thanks may go to @Valera1978.
You find all discussion to this ROM in @Valera1978's thread here: https://forum.xda-developers.com/galaxy-tab-a/development/rom-lineageos-15-1-64bit-20180920-t3845016
Downloads:
Latest builds from 2022-05-06 with security patch level 2022-03-05.
The builds can be found here:
SM-T585: https://www.androidfilehost.com/?w=files&flid=307678
SM-T580: https://www.androidfilehost.com/?w=files&flid=307673
Migrate-script: https://www.androidfilehost.com/?fid=2188818919693800974
(unzip before use, identical script for both SM-T580 and SM-T585)
Please make a complete backup with TWRP of your current ROM and data, in case anything might go wrong!
The builds are signed with release keys!
If you want to install this ROM over an existing installation of another author's Lineage-OS (build with test-keys), then you first should run the 'migration-achalmgucker.sh' script with the argument 'official', to ensure compatibility to my build with release-keys.
And if you want to move from this ROM to another author's ROM, then it might be good to run the 'migration-achalmgucker.sh' script with the argument 'unofficial' to return to test-keys.
Please carefully read this information from LineageOS: https://wiki.lineageos.org/signing_builds.html
Or you do a factory reset before starting with this ROM. (You will lose of course all your data!)
Further updates of this ROM can be done directly without data loss, no special migration necessary.
Gapps
https://opengapps.org
Android 9.0
Platform: ARM64
Root
Can be done with Magisk.
Sources
LOS16: https://github.com/Lineageos
Kernel: https://github.com/Valera1978/android_kernel_samsung_exynos7870
Device-Tree: https://github.com/Valera1978/android_device_samsung_gtaxlwifi & https://github.com/Valera1978/android_device_samsung_gtaxllte
Vendor: https://github.com/Valera1978/android_vendor_samsung_gtaxlwifi & https://github.com/Valera1978/android_vendor_samsung_gtaxllte
Thanks
Thanks to @Valera1978 for the great adaption of LOS16 to SM-T58x
Thanks to the LineageOS team
Reserved
Thank YOU for your efforts, very much appreciated.
looks great on my 585.
first the migrate one, boot, then the one from 15th, boot.
added addon_su for root
all data are here.
THANK YOU!
Thank you very much; runs perfect on my t580.
One question: after every reboot I get the warning that Selinux is disabled. Is that a problem, or should I just ignore it?
I also would like to thank and congratulate the developer(s). This ROM is now the only viable option for a T585, since LOS17.1 is practically unusable and Blis broke phone calls and became ridiculously bloated with google crap.
Thank you, I hope you'll be able to keep updating the ROM with security patches every now and then.
For the life of me, I cannot get this to boot on my T585. Tried to use the migrate build to move without data loss. That failed. Tried a factory reset and migrate build again, no luck. Another factory reset and the regular build, no luck. Format and clean install with both the migrate and the regular builds, no luck. I always just get the lineage splash screen animation endlessly. Typically I let it run like that for about an hour before I try another iteration, but I did let it run for 12 hours once just to see.
I've tried flashing with and without magisk and gapps, always the same result.
I started this process off on Valera's 12/11/19 predecessor build, TWRP 3.3.1-0.
Anyone else work through something similar and/or have suggestions for how to get it running?
klsortem said:
For the life of me, I cannot get this to boot on my T585.
Click to expand...
Click to collapse
I'm sorry to hear that.
Do you use Google-Apps? I took the micro package from opengapps.org.
My usual installation procedure (for a first time installation) for tablet and smartphone is:
Make backup
Wipe boot, system
Wipe data if factory reset intended, otherwise keep data
Add lineageos.zip, add opengapps.zip, add magisk.zip
reboot
That's it.
Subsequent updates with the same ROM flavor are only done by installing the lineageos.zip without any wipes or re-applying of opengapps/magisk.
With one smartphone I have trouble from time to time, it would remain in the Lineage-logo for long time, either perpetual or at least longer than my patience lasts. In this case I force reboot (power/volume-) and most times it works then for this phone.
I have not had such trouble with the T585 and the T580 yet.
Klaerchen said:
I'm sorry to hear that.
Do you use Google-Apps? I took the micro package from opengapps.org.
My usual installation procedure (for a first time installation) for tablet and smartphone is:
Make backup
Wipe boot, system
Wipe data if factory reset intended, otherwise keep data
Add lineageos.zip, add opengapps.zip, add magisk.zip
reboot
Click to expand...
Click to collapse
Hi,
Thank's for the reply
Yep, that's my typical process too and the one I followed. I use the opengapps.org full build since I'm pretty well entrenched in the google ecosystem. It figures though that this is the one time I forgot to take a TWRP backup before flashing the new rom and this is the one that's causing me so much hassle. Thankfully, I don't keep much user data stored locally on this tablet so its more of a time hassle than any real dilemma.
Just to confirm, since I've done full resets and wipes to try and make it work, I shouldn't need the -migrate build any longer since the old keys are wiped in the format, or are they stored somewhere in the device PROM and so I should continue trying to make the migrate build work? I'm curious if its a TWRP version difference that may be flashing improperly, or if the fact that I have a microSD inserted when I'm doing this might be causing some hangup?
My next step I think, unless you have some other suggestion, is to revert to the old build and start the process over from there with just bare bones.
Thanks!
klsortem said:
It figures though that this is the one time I forgot to take a TWRP backup before flashing the new rom and this is the one that's causing me so much hassle.
Click to expand...
Click to collapse
Too bad!
Just to confirm, since I've done full resets and wipes to try and make it work, I shouldn't need the -migrate build any longer since the old keys are wiped in the format
Click to expand...
Click to collapse
Yes, with factory reset, you start with the normal build, no migrate required.
or are they stored somewhere in the device PROM and so I should continue trying to make the migrate build work?
Click to expand...
Click to collapse
No.
I'm curious if its a TWRP version difference that may be flashing improperly, or if the fact that I have a microSD inserted when I'm doing this might be causing some hangup?
Click to expand...
Click to collapse
I also had the microSD card inserted during that process, and I use TWRP-3.3.1-0
My next step I think, unless you have some other suggestion, is to revert to the old build and start the process over from there with just bare bones.
Click to expand...
Click to collapse
Yes, now, as you already lost all your data, you could try to restore some older backup and check, if everything is working again. Then wipe boot, system, and data and install the (non-migrate) build as a fresh start.
Good luck!
@Klaerchen
Thank you for this work
does it work for p555?
saba7o0o said:
does it work for p555?
Click to expand...
Click to collapse
It does not support it
Thank you for this rom. Seems rock solid so far was encountering several bugs on the 10 Roms so a updated pie rom was just what I needed
New builds are up with LOS security patches of May 5th, 2020.
See first post for download info.
Klaerchen said:
New builds are up with LOS security patches of May 5th, 2020.
See first post for download info.
Click to expand...
Click to collapse
It works well thank you :fingers-crossed:
Klaerchen said:
New builds are up with LOS security patches of May 5th, 2020.
See first post for download info.
Click to expand...
Click to collapse
Thank you. Just updated the first of my two 585. Working great.
Maybe offtopic, do you think it's worth to buy an sm-t585 ( used ) nowadays for 120 €? Of course with the sense to flash THIS rom. Thanks in advance...
0LDST4R said:
Maybe offtopic, do you think it's worth to buy an sm-t585 ( used ) nowadays for 120 €? Of course with the sense to flash THIS rom. Thanks in advance...
Click to expand...
Click to collapse
I personally like this tablet very much and I would pay that money.
However I use it for reading my local newspaper, online magazines, doing much of my e-mail correspondence, internet browsing, Skype etc. But no games, no memory and processor demanding apps.
The display quality is very good, the sound is acceptable. Very good for office-type work, the battery lasts half a week.
And I like the appearance and stability, but I do not have an overview of other current tablets to make a fair comparison.
Just my personal opinion.
Klaerchen said:
I personally like this tablet very much and I would pay that money.
However I use it for reading my local newspaper, online magazines, doing much of my e-mail correspondence, internet browsing, Skype etc. But no games, no memory and processor demanding apps.
The display quality is very good, the sound is acceptable. Very good for office-type work, the battery lasts half a week.
And I like the appearance and stability, but I do not have an overview of other current tablets to make a fair comparison.
Just my personal opinion.
Click to expand...
Click to collapse
+1 for the above. price is cheap and my wife and me love this one. doing same as above, but have both in caes with keyboard, using it for RDP sessios to my Linux Terminal Servers and more office style work. Display is great, CPU power is fine.
PLEASE BEFORE YOU decide to try this rom, you MUST read all of post 1, 2, 3 and 4 (about 10 minute read). If you think this is an unreasonable request, then stop reading now and find another rom. Thank you.
NOTE: There is no S-pen support. If you need S-pen, DO NOT USE THIS ROM.
I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions that comes as a result of flashing this rom.
BACKUP YOUR DATA AND OLD rom BEFORE trying my rom.
If you are NOT an expert in using fastboot, adb, odin, heimdall, twrp, DO NOT use this rom. You must know how to use these tools to revert back to your old rom. If you are new to flashing custom roms, do NOT attempt this. If you need your tablet for work and something important, do NOT flash this rom. This rom could result in a bricked device or boot loop or non booting device or you not being able to revert back to your old rom.
What works
1. bluetooth
2. wifi
3. brightness
4. external audio
5. GPS
6. audio through headphone jack
7. audio over bluetooth
8. camera (selfie photo preview doesn't work), a bit slow to switch from front to back camera and vice versa
9. selinux enforcing
10. DRM level 3
11. deep sleep
What doesn't work/What isn't tested
1. gapps. Some of you require gapps for whatever reason. I use Aurora Store for my purposes and thus have NO KNOWLEDGE of the current state of gapps.
There are various gapps projects (at least 5 in 2022). Each has pros and cons. It's your job to do the research and find a suitable gapps project. I suggest you allocate at least a couple of hours/days doing your own research. My rom works by itself fine without gapps. DO NOT talk about gapps in this thread.
2. full disk encryption has been deprecated in Android 13 (LineageOS 20).
3. S-pen doesn't work and I have no plans to even try to make it work.
Source Code
The build instructions, source code and manifest are listed in post #2 FAQ #1. The kernel source code is at
https://github.com/retiredtab/android_kernel_samsung_msm8916/tree/lineage-20.0
Thanks
1. LineageOS team for source code.
2. LineageOS-UL team for merging, maintaining the legacy patches needed for old devices into one common repository so everyone can benefit.
https://github.com/orgs/LineageOS-UL/people
3. @lpedia for helping test a msm8916 tablet device.
FAQ - I spent hundreds of hours building this rom. If you think it's unreasonable to read this FAQ, then don't use this rom. Thank you.
Q1. Where are the source and kernel source files?
A1. The kernel source files are at
https://github.com/retiredtab/android_kernel_samsung_msm8916/tree/lineage-20.0
The device tree files are at
https://github.com/retiredtab/android_device_samsung_msm8916-common/tree/lineage-20.0
https://github.com/retiredtab/android_device_samsung_gt5note10wifi/tree/lineage-20.0
https://github.com/retiredtab/device_samsung_gte-common/tree/lineage-20
The vendor tree files are at
https://github.com/retiredtab/vendor-samsung-gt5note10wifi/tree/lineage-19.1
https://github.com/retiredtab/vendor_samsung_msm8916-common/tree/lineage-20
The manifest.xml (or roomservice.xml) and build instructions for 20 are at
https://github.com/retiredtab/LineageOS-build-manifests/tree/main/20/msm8916
Q2. Is this ALPHA rom suitable as a daily driver?
A2. It can be depending on your requirements. I can't test every app so you try it yourself to see if it's suitable. I've been using this rom myself since mid Jan 2023 with no major issues. I suggest you do a clean install, see FAQ 11, and flash this 20 ROM BY ITSELF (no gapps, magisk, etc) and see if you like it.
Q3. What if my app, xyz, doesn't work?
A3. If your app doesn't work, then go back to your old rom.
Q4. Your rom is laggy and buggy.
A4. If you find the above, then go back to your old rom. There's only so much software can do on a 2015 budget level tablet. Remember a budget tablet will have the slower SoC/CPU and less DRAM than a top of the line model. Your tablet will also run slower when you use gapps. You can run a lot of software without using gapps. Research fdroid, newpipe, Aurora store etc.
Q5. What TWRP should I use?
A5. You MUST use TWRP 3.5.2_9. Get it from
https://sourceforge.net/projects/retiredtab/files/SM-P550/TWRP/
Q6. Why should I use this rom?
A6. If you don't like this rom, then don't use it.
Q7. Will you offer monthly updates with security patches?
A7. I will try to offer monthly security patches, but that all depends on if I continue to have high speed Internet in the future.
Q8. Can you help me? I'm a newbie. Can you provide step by step instructions?
A8. I don't have the time to help newbies, so please do your own research. There are lots of tutorials, videos, etc on how to flash roms. Newbie questions must be posted in the Questions and Answers forum, not here.
Q9. Can I report a bug with respect to the rom?
A9. Yes, but you need to supply the following information. If you don't, I won't look at it.
You must provide an adb logcat of the problem and tell me how to reproduce it. Note I will not be downloading any apps that require money or an userid/password. For example, if you have problems with Netflix, I cannot help you since I don't have a paid subscription. If you use some app that requires an userid/password, I cannot help you as I'm not willing to create another userid/password even if it's free.
To get a logcat, open up a terminal window.
Code:
# clear the logcat first
adb logcat -c
# start logcat trace
adb logcat > problem.txt
# reproduce problem
# wait until problem has occured, then stop trace by hitting ctrl-c
# attach the problem.txt ZIPPED as text files don't seem to get attached properly
Q10. Do I need to erase everything and format my data?
A10. Yes, you MUST erase all the partitions (system, data, dalvik/art cache, cache) using TWRP and MUST format your data before installing 19.1 when you are coming from stock or an earlier version of LineageOS or from another custom rom. If you get stuck at the boot animation for more than 5 minutes, it's likely because you didn't follow the instructions I just wrote. Dirty flashes from stock, other custom roms or older LineageOS versions are not supported and not likely to work.
Q11. What gapps should I use?
A11. I don't use gapps anymore. I use Aurora Store. As of Nov 6, 2021, I no longer make recommendations on which gapps to use as your mileage may vary.
Let me by crystal clear. YOU NEED TO DO YOUR OWN HOMEWORK selecting between the various gapps offered. There are 5: opengapps, nikgapps, mindthegapps, flamegapps and bitgapps. Each one will have it's own installation instructions. The only recommendation I will offer to use the SMALLEST version of gapps.
Don't be surprised that whatever gapps you use might have problems like "Just a sec", voice not working, updating google play store please wait, etc. These are NOT problems of the OS as the OS will run fine without gapps. These are gapps problems and you must ask in the gapps forum why it doesn't work.
Q12. I'm having problems with gapps, can you answer why it's not working?
A12. I WILL NOT answer any questions regarding gapps. This thread is about the rom, not gapps. Android does not depend on gapps in order to work.
Q13. Why isn't my post answered or ignored?
A13. Questions already answered in the FAQ will be completely ignored. Again, I do not use Windows OS or gapps.
Q14. What speed up/optimization tips do you suggest?
A14.
1. Turn off animations. Go into developer settings, scroll down to the drawing section, and set window, transition and animator scale all to "off".
2. If you don't have a google account, don't install gapps. Use Aurora Store to get your apps as you can get all the same apps from the play store using an anonymous login.
3. Dont' run more than 2 apps at the same time. You can probably listen to music in the background and use a web browser at the same time, but don't expect great performance from a 2015 entry level tablet.
4. Use a web browser like Brave that has built in adblock and privacy features.
5. Use newpipe to watch your streaming content. It has built in adblock so you don't have to watch forced ads.
6. Look for apps that are open source, ad free and lightweight.
7. Remove all unused quick setting "bubbles" from the quick pull down menu. I only need and have 6.
Q15. Does this rom support Magisk for root?
A15. I don't use Magisk myself so I don't know and Magisk is always being updated to fool Google's certification process. Others have reported Magisk as working, but I won't answer any questions regarding it.
Q16. Will this rom ever become official?
A16. Starting with 19.1, legacy devices like ours will NEVER be official due to lack of ebpf support. See https://lineageos.org/Changelog-26/
Also, I don't want the responsibilities that come with being an official maintainer.
Q17. What is the difference between this rom and others?
A17. This rom tries to be pure LineageOS with little to no modifications.
Q18. Will there be any major 20 code modifications in the future?
A18. I don't anticipate any major modifications. There may be some small bug fixes and minor code cleanup, but all the hard work in getting the rom up and running and fixing all the major bugs have been done completed. This doesn't mean the code is perfect or well organized, but I won't be doing any major changes now that 20 is working.
Q19. Why did you fork the device and vendor trees for 20?
A19. The msm8916 repos seem geared towards phones and sometimes do not work or cause boot animation loops for tablets so I decided to fork their repos. In other words, what's deemed as msm8916-common code isn't common to all devices.
In addition, since I'm building SM-T350, SM-T357W, SM-T550, SM-P550 and SM-T560NU (all use the same msm8916 code), it seems easier to maintain all of them if I can control my own code repos and not worry if my changes affects the phones or not.
I have completely decommonized and rearranged the 20 msm8916-common tree so it's easier for me to maintain and build.
Q20. Can you build a variant of this device? For example, a LTE or S-pen version.
A20. If I don't physically have the device, I cannot and will not build it unless I can boot and test it myself. Even then, there's no guarantee that I can get those variant features working.
Q21. Can I load this rom on a variant devivce like LTE or S-pen version?
A21. The rom is built for the device explicitly listed. If you are an advanced user and understand TWRP, adb, odin, heimdall, you can try loading it on a LTE or S-pen variant by modifying the updater-script, but it may cause a bricked device, bootloops or non functionality of LTE/S-pen. You have been informed and warned!
Q22. I don't like the taskbar, how do I turn it off?
A22. Choose settings, type task into the search bar. Choose enable taskbar and disable taskbar. This will leave the on screen nav bar. If you want to disable that, go to settings, system, gestures, system navigation, gesture navigation.
Q23. Okay, I understand the consequences and that this is ALPHA rom and willing to take the risks outlined, now where can I find the rom?
A23. You can download it from https://sourceforge.net/projects/retiredtab/files/SM-P550/20/
Release notes
NOTE: All builds that I upload have been personally tested on my device to boot and function as described in post #1. Having said that, there's still a chance it won't work on your device due to human error, your configuration, your apps, etc. If it won't boot, always start with a complete wipe of everything and format your data in TWRP. This is known has a clean install. Backup your data before a clean install.
June 23, 2023
1. Initial 20 ALPHA public release.
2. Incorporates June 5th security patches as per https://review.lineageos.org/q/topic:"T_asb_2023-06"
Reserved.