[UNOFFICIAL][ROM]ALPHA LineageOS 19.1 for SM-T710 - Sept 16, 2023

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schnoeselmeier

Senior Member
Mar 19, 2016
246
40
Chiang Mai
Good luck! I haven't tried to enable SafetyNet on my T710, and will be interested to hear how you go. 😉
I passed safety net now with Magisk/Zygisk. I realized that I had just forgotten to clear all data of Google Play Services and the Google Play Store. After clearing all data of these apps I additionally installed Universal safety net fix 2.4.0. in Magisk. Bingo!
 
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Dr_MC

Member
Aug 16, 2011
32
2
Samsung Galaxy Tab S2
Is it possible to enable split screen? Freeform is awkward and hard to get two screens side by side. Also, I sometimes get "Trebuchet keeps stopping" messages (when trying to split for example). Is it possible to install another launcher and disable Trebuchet?
Thanks
 

lpedia

Senior Member
Sep 18, 2020
348
1
173
Samsung Galaxy Tab S2
HTC 10
Is it possible to enable split screen? Freeform is awkward and hard to get two screens side by side. Also, I sometimes get "Trebuchet keeps stopping" messages (when trying to split for example). Is it possible to install another launcher and disable Trebuchet?
Thanks

I've never tried to use split screen before. I just checked on a different device with LOS 19.1 (my T710 isn't on 19.1 at present), and the split screen option wasn't showing. Then I found this LOS issue https://gitlab.com/LineageOS/issues/android/-/issues/4668, and re-enabled animations (which I had turned off at some stage). "Split top" is now available and seems to work.

So ... if you have animations turned off, try turning them back on.

You can certainly install and use another launcher, but probably can't disable Trebuchet (that option isn't present on the LOS 19.1 device mentioned above).

Try installing another launcher and making it the default home app, and see how that goes.

Some Gapps packages can remove default LOS system apps like Trebuchet and install another app as a system app in their place. You probably need to do a clean install to achieve this.
 
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lpedia

Senior Member
Sep 18, 2020
348
1
173
Samsung Galaxy Tab S2
HTC 10
BTW ... for those who use Gapps: there's been a lot of work done on NikGapps since I posted the comment in February about versions that work with this ROM. I can confirm that the NikGapps versions released since then do work.
 

Dr_MC

Member
Aug 16, 2011
32
2
Samsung Galaxy Tab S2
I've never tried to use split screen before. I just checked on a different device with LOS 19.1 (my T710 isn't on 19.1 at present), and the split screen option wasn't showing. Then I found this LOS issue https://gitlab.com/LineageOS/issues/android/-/issues/4668, and re-enabled animations (which I had turned off at some stage). "Split top" is now available and seems to work.

So ... if you have animations turned off, try turning them back on.

You can certainly install and use another launcher, but probably can't disable Trebuchet (that option isn't present on the LOS 19.1 device mentioned above).

Try installing another launcher and making it the default home app, and see how that goes.

Some Gapps packages can remove default LOS system apps like Trebuchet and install another app as a system app in their place. You probably need to do a clean install to achieve this.
Thank you. Animations had been turned off. I turned them back on and split works and trebuchet doesn't crash any more,
 

retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
New build called lineage-19.1-20230507-UNOFFICIAL-gts28wifi.zip

NOTE: lpedia has built the rom and I personally tested the build 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.

May 7 , 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.

2. May 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-05
 
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retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
New build called lineage-19.1-20230612-UNOFFICIAL-gts28wifi.zip

NOTE: lpedia has built the rom and pflyaz has tested the build 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 12, 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.

2. June 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-06
 
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retiredtab

Senior Member
Nov 16, 2017
1,655
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I have released 20 ALPHA for T710. See

https://forum.xda-developers.com/t/...ineageos-20-for-sm-t710-june-23-2023.4600533/

The current plan, subject to change, is to build 18.1, 19.1 and 20 monthly security patches for 2023 only because we have multiple rom builders and testers. If any one of these volunteers or builders leaves, then this will change. Instructions on how to build are all provided in the FAQ post #1.

We have not yet made a final decision for building 18.1 and 19.1 in 2024.
 

retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
New build called lineage-19.1-20230712-UNOFFICIAL-gts28wifi.zip

NOTE: lpedia has built the rom and pflyaz has tested the build 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.

July 12, 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.

2. July 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-07
 

retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
New build called lineage-19.1-20230813-UNOFFICIAL-gts28wifi.zip

NOTE: lpedia has built the rom and I have tested the build 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.

Aug 13, 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.

2. Aug 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-08
 

retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
Update on CPI.

There has no been no fix for the “Connected to device. Can’t provide internet” (CPI). However, pflyaz found a workaround for CPI. Goto Settings, Network & internet, Internet. In the upper right hand corner there is a small wrench with reversed arrow. Touch that and it will reset your wifi and you should be reconnected.

NOTE: Airplane mode has to be disabled in order to see this icon.
 
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retiredtab

Senior Member
Nov 16, 2017
1,655
1,468
New build called lineage-19.1-20230916-UNOFFICIAL-gts28wifi.zip

NOTE: lpedia has built the rom and I have tested the build 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.

Sept 16, 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.

2. Sept 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-09
 

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  • 4

    LineageOS 19.1 UNOFFICIAL for 2015 Samsung Galaxy Tab S2 SM-T710 ONLY​

    Model: SM-T710 (wifi) - gts28wifi - 8" screen, Exynos 5433 SoC, no LTE
    This is the ONLY model that the ROM will work on.

    There is NO ROM for the T715 or T815 in this thread. Questions about T715 or T815 will be completely IGNORED.

    You MUST READ posts 1-4 (about 10 minute read) before deciding to install this rom. If you think this is an unreasonable request, then stop reading now and find another rom. Thank you.

    DISCLAIMER


    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.

    All involved in bringing this build to you are working voluntarily on it in very limited spare time, and their other life commitments have much higher priority. Don't expect a prompt, or even any, response to questions and bug reports.

    Before attempting to install this ROM

    1. Ask yourself: would bricking your device be a disaster for you? If yes, don't try this ROM! It can't be guaranteed stable and reliable enough to depend on for daily use.
    2. BACKUP YOUR DATA AND EXISTING ROM. Be prepared for a complete restore if anything goes wrong.
    3. RESEARCH adb, fastboot, Odin/heimdall, and TWRP and how to use them, if not already familiar with these.

    What works

    1. bluetooth
    2. wifi
    3. brightness
    4. external audio
    5. GPS
    6. audio through headphone jack
    7. audio over bluetooth
    8. selinux enforcing
    9. DRM level 3 (SD definition)
    10. deep sleep
    11. camera

    1. fingerprint is completely removed in 19.1. When I tested it in March 2022, it wasn't compatible with keystore2 and as I wrote in post 1891 at

    https://forum.xda-developers.com/t/...t810-t815-t815y.3879302/page-95#post-85533725

    it never worked properly after deep sleep. If you need fingerpint to work, stay with stock Samsung rom.

    2. DRM level 1 (no HD definition). There's more detail in post 1891 above. I will not be trying to achieve level 1 for HD definition. If you need HD definition for your $treaming media, stay with stock Samsung rom.

    3. workaround to disable scoped storage. In 18.1 there was a workaround to disable scoped storage, but that no longer works in 19.1. So if you have a lot of apps or data on an external microsd, the performance may be severely degraded.

    4. If you charge the device while it's powered off and then want to power it on, you MUST wait at least 30 seconds AFTER disconnecting the charger cable before pressing the power button otherwise you might run into strange boot problems.

    5. keyboard bug workaround. When prompted to enter something like a Bluetooth pin or text based password, sometimes the keyboard is not shown on the screen or off screen. The workaround is to goto settings, system, languages & input, on-screen keyboard, Android Keyboard (AOSP), appearance & layout, theme and choose "Material - follow system settings".

    This keyboard bug is a LineageOS bug as per

    https://review.lineageos.org/c/LineageOS/android_packages_inputmethods_LatinIME/+/325438

    6. There has no been no fix for the “Connected to device. Can’t provide internet” (CPI). However, pflyaz found a workaround for CPI. Goto Settings, Network & internet, Internet. In the upper right hand corner there is a small wrench with reversed arrow. Touch that and it will reset your wifi and you should be reconnected.

    NOTE: Airplane mode has to be disabled in order to see this icon.

    7. Possibly other features that I haven't tested or do not use.

    Source Code

    See FAQ 1 for links in post #2.

    Thanks

    1. LineageOS team for source code.

    2. In alphabetical order.

    @ananjaser1211
    - helping out with libGLES_mali problem when I couldn't figure out why T810, for 3 months, wasn't booting with graphics
    - answering more 5433 related questions wrt to certain features.

    @bluess57
    - joining the team and helping fix some of the legacy code problems
    - pending code commits to come in the future

    @bmwdroid
    - testing many pre ALPHA builds and reporting the results

    @CuckooPenguin
    - testing many pre ALPHA builds and reporting the results, but sadly his T810 was killed by a cat (true story)

    exynos5420 team
    - making suggestions regarding radare2 debugger/code analyzer when I couldn't figure out why T810, for 3 months, wasn't booting with graphics

    Kyle Harrison
    - giving me a clue on how to fix the binder/keystore2 problem with msm8916 which ultimately led me to fix the same problem on the exynos5433 devices
    - sharing his code on his github repos where I could study his commits to help bring up 19.1
    - making code commits on LineageOS wrt to legacy devices like ours
    - sharing the repopicks necessary to bringup 19.1

    @lpedia
    - testing many pre ALPHA T710 builds starting in April 2022 and reporting the results
    - verifying my build instructions work so that the technically inclined can build this from source
    - building, maintaining and most importantly, testing the T710 18.1 builds before monthly security patches release
    - volunteering to build, maintain and test T710 19.1 builds

    @metterschling
    - reaching out and joining our group to help with code and fix problems
    - testing many pre ALPHA builds and reporting the results
    - pending code commits to come in the future

    @pflyaz
    - testing many pre ALPHA builds and reporting the results
    - writing install instructions for the newbies

    @simon-edwards
    - reaching out and joining our group to help with code and fix problems
    - testing many pre ALPHA builds and reporting the results

    @tarkzim
    - helping me fix the gpsd crash problem because I was missing the libutils library in my Android.bp file
    - sharing his code on his github repos where I could study his commits to help bring up 19.1 especially wrt to hal audio 2.0 and camera 1.0

    @Yogi555
    - testing many pre ALPHA builds and reporting the results
    - building, maintaining and most importantly, testing the T810 18.1 builds before monthly security patches release

    As you can see, it's truly a team worldwide effort in getting this ALPHA 19.1 build out.
    3
    Tab S2 T710 Upgrade Procedure for the LineageOS 19.1 ROM by retiredtab

    These installation instructions work for both Tab S2 T710 and T810, starting from a device running stock Android 7.0. I have both devices and have tested the procedure on both. I am a Windows guy, so these instructions assume a Windows PC. I am a lifelong techie guy and an Android enthusiast. My current “production” devices are Samsung S22 Ultra and Samsung Tab S7, but I do love the size and performance of the Tab S2 T710 so am extremely happy that @retiredtab and @lpedia have been successful at making Lineage 19.1 run on the Tab S2. But I am not developer, so these instructions will work for any competent newbie who’s looking for LOS 19.1 on their Tab S2 tablet. I do realize there may be alternative approaches for those who have deeper Android tech knowledge than me, but this procedure does work every time.

    Step 1 – Preparation
    1. Update your Tab S2 to the latest stock software.
    2. Install a micro-SD card into your Tab S2.
    3. Enable Developer Options – tap Build Number seven times.
    4. In Developer Options, turn on USB debugging.
    5. Connect your Tab S2 to your PC via USB and download onto the micro-SD card three files:
    6. Download to your PC TWRP_3.5.2_9_SM-T710_20210719_Unofficial.tar from retiredtab - Browse /SM-T710/TWRP at SourceForge.net (T710) or twrp-3.5.2_9-0-gts210wifi.img.tar from Download TWRP for gts210wifi (T810)
    7. Download to your PC Odin, from https://technastic.com/wp-content/uploads/2020/02/Odin3_v3.14.4.zip, and extract the zip.

    Step 2 – Install TWRP Recovery
    1. Power off your Tab S2.
    2. Launch Odin on your PC and press OK.
    3. Power up your Tab S2 into Download mode by holding down Home+VolDown+Power.
    4. Then at the Warning screen hit VolUp.
    5. Connect your Tab S2 via USB to your PC, and you should see Added!! in Odin.
    6. Click AP in Odin and select the downloaded TWRP.
    7. In Odin Options, uncheck Auto Reboot.
    8. Click Log tab again.
    9. Click Start in Odin.
      • Installing TWRP only takes a couple of seconds.
    10. You will see progress in the Log, and Pass at the top of Odin when done.

    Step 3 – First boot into TWRP
    1. This part is tricky!
    2. Power down your Tab S2 by holding down VolDown+VolUp+Power.
    3. IMMEDIATELY the screen goes blank, hold down Home+VolUp+Power.
    4. Keep holding down until you see the TWRP home page.
    5. If you end up booting into Android rather than TWRP then you will have to repeat Step 2 and Step 3 again.

    Step 4 – Backup your stock ROM
    1. In TWRP, select Backup, Select Storage to choose your micro-SD card, check all the partition boxes, and then swipe Backup.
    2. Confirm your backup is good
    1. In TWRP, select Wipe, then Advanced Wipe.
    2. Select all partitions except Micro SD Card (and USB OTG).
    3. Swipe to Wipe.
    4. Back, Back again, then Format Data
    5. Type yes, and tap check.
    6. Back, Back, Back, and select Restore.
    7. Select Micro SD card and your backup.
    8. Restore all partitions and allow restore to complete.
    9. Reboot to System, and confirm you are back to stock.

    Step 5 – Install ROM and NikGApps
    1. In TWRP, select Wipe, then Advanced Wipe.
    2. Select all partitions except Micro SD Card (and USB OTG).
    3. Swipe to Wipe.
    4. Back, Back again, then Format Data
    5. Type yes, and tap check.
    6. Back, Back, Back, and select Install.
    7. Select your micro-SD storage.
    8. Select the Lineage-19.1 ROM.
    9. Add more Zips, and select nikgapps.
    10. Swipe to confirm Flash.
    11. Install takes about 3 minutes.
    12. Wipe Cache/Dalvik, and Swipe to Wipe.
    13. Reboot System.

    Step 6 – Build your Android 12 Tab S2
    1. First boot into Lineage is less than a minute, and then the Lineage boot animation takes less than 1 minute before “Welcome to LineageOS” appears.
    2. At the end of the initialization process, be sure not to choose the Replace Lineage Recovery option, otherwise TWRP goes away.
    3. Set up your Android device per your preference. I am a mainstream Google/Google Play Apps user, and I have loads of Apps, so it takes me a long time to install my Apps and set the tablet up for daily use. If you are less of a pack-rat, it shouldn’t take long!
    4. I have found that, by not installing Magisk initially, I can restore all my Apps, including the sensitive ones such as Peacock, Netflix, Disney+, etc. All Apps run normally, and when I check Google Play/Settings and scroll to the bottom, I see “Device is certified”.
    5. I recommend leaving tablet completely alone during the initial Apps and Data restore process. When I get impatient and fiddle around as it’s copying I’ve seen crashes.
    6. Once all copying is done, do your unique Android setup. My go-to Android settings are:
    • Nova Prime Launcher (actually, gets selected during the initialization process, but I load my layout from backup at this time)
    • Microsoft Swiftkey
    • Screen timeout 30 minutes, and screen saver Clock
    • Dark theme off
    • Disable taskbar.
    • Plain dark blue wallpaper
    • Touch, screen locking, and charging sounds off
    • Battery %age next to icon
    • Default USB = File Transfer
    • Developer Options enabled, and USB and Rooted debugging selected
    • Window/Transition/Animator Scale all set to Animation Off
    • FX File Explorer
    • Microsoft Edge as default browser (with AdBlock enabled and Google as search and sync to my PC)
    • Raindrop, for all my cross-platform/device bookmarks
    • Advanced restart menu (to allow reboot into TWRP).

    Step 7 – Make Root – Optional
    1. Restart Tab S2 into TWRP.
    2. In TWRP, install Magisk-v25.2.apk.
    3. Reboot System
    4. In Android install Magisk-v25.2.apk.
    5. Open Magisk and select zygisk in settings.
    6. Restart again.
    7. You now have root. I test by enabling root in FX File Explorer and granting root.

    Step 8 – All done! Enjoy!
    1. I do a final and full TWRP backup once the device is solid on Lineage 19.1.
    2
    I am a happy user of retiredtab's Lineage 18.1 for T710. Are there any advantages to moving to 19.1? I am not a power user, although I sometimes look for specific files though myfiles types of apps and copy or move them.
    If you're happy with 18.1, just stay with that unless you need a feature that's only in Android 13.
    2
    Its working so smooth I like it! The only problem I found is the audio when I play videos in VLC player, didn't play the audio. Can't hear anything. ah! And sometimes my tablet reboots
    @Kyrat - does VLC audio work otherwise, eg to play music? If not, you probably have the same problem as I came across with some versions of VLC. There's no audio output at all with VLC's default audio output method, AudioTrack. Changing that to OpenSL ES fixed the problem for me.

    That setting is in VLC Settings > Extra settings > Audio > Advanced > Audio output.
    2
    New build called lineage-19.1-20221111-UNOFFICIAL-gts28wifi.zip

    NOTE: lpedia has personally tested each build on his 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.

    Nov 11, 2022 release notes
    1. YOU MUST read posts 1-4 if you haven't already.

    2. Nov 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-11