[UNOFFICIAL][ROM]ALPHA LineageOS 19.1 for SM-T810 - Sept 16, 2023

bmwdroid · Mar 24, 2023

I can confirm that NikGapps-core-arm64-12.1.20220709-signed work on my T810.
Made a totally clean installation on monday.
Had some probs with the device right after the installation but nearly none (1 time wifi connection loss but reconnected directly on its own) since then.
Even restored the Data backup from previous version and everything is back and working.

dd9ps · Mar 27, 2023

retiredtab said:
New build called lineage-19.1-20230107-UNOFFICIAL-gts210wifi.zip

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.

19.1 has been my daily driver since July 2022.

Jan 7, 2023 release notes
1. YOU MUST read posts 1-4 if you haven't already.
2. Jan 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-01
3. Whatever LineageOS changed since Dec 5th patches (about 5,900 files had to be recompiled).

thank you again for great work. I only found one little bug. Wallpaper & style doesn't work

Screenshot_20230327-035117_Pixel Launcher.png

bmwdroid · Mar 27, 2023

dd9ps said:
thank you again for great work. I only found one little bug. Wallpaper & style doesn't workView attachment 5873693

I've changed mine with no probs

dd9ps · Mar 27, 2023

Did you touch and hold an empty space on homescreen?

bmwdroid · Mar 28, 2023

dd9ps said:
Did you touch and hold an empty space on homescreen?

Yes.
Just tested again.
Still working.

retiredtab · Apr 17, 2023

New build called lineage-19.1-20230413-UNOFFICIAL-gts210wifi.zip

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.

Apr 13 , 2023 release notes
1. Apr 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-04
2. Whatever LineageOS changed since Mar 5th patches (about 28,000 files had to be recompiled).

bmwdroid · Apr 18, 2023

retiredtab said:
New build called lineage-19.1-20230413-UNOFFICIAL-gts210wifi.zip....

Dirty flashing unto previous ROM without any problem.
Thx very much @retiredtab

retiredtab · May 7, 2023

New build called lineage-19.1-20230506-UNOFFICIAL-gts210wifi.zip

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.

May 6 , 2023 release notes
1. May 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-05
2. Whatever LineageOS changed since Apr 5th patches (about 6,600 files had to be recompiled).

IvkovicD · Jun 4, 2023

retiredtab said:
New build called lineage-19.1-20230506-UNOFFICIAL-gts210wifi.zip

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.

May 6 , 2023 release notes
1. May 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-05
2. Whatever LineageOS changed since Apr 5th patches (about 6,600 files had to be recompiled).

Any updates on Bluetooth BLE known pairing issue with this release? Thx

retiredtab · Jun 4, 2023

IvkovicD said:
Any updates on Bluetooth BLE known pairing issue with this release? Thx

None. If I make a change to the T810 source code/device tree, it will in the release notes.

There's always a possibility that upstream (LineageOS/AOSP) made changes to the bluetooth code, but I I don't track/follow those changes. There's hundreds/thousands of changes monthly.

retiredtab · Jun 9, 2023

New build called lineage-19.1-20230609-UNOFFICIAL-gts210wifi.zip

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 9 , 2023 release notes
1. June 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-06
2. Whatever LineageOS changed since May 5th patches (about 13,100 files had to be recompiled).

retiredtab · Jun 28, 2023

I have released 20 ALPHA for T810. See

https://forum.xda-developers.com/t/...ineageos-20-for-sm-t810-june-23-2023.4600445/

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 · Jul 11, 2023

New build called lineage-19.1-20230711-UNOFFICIAL-gts210wifi.zip

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.

July 11, 2023 release notes
1. July 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-07
2. Whatever LineageOS changed since June 5th patches (about 5,800 files had to be recompiled).

retiredtab · Aug 15, 2023

New build called lineage-19.1-20230814-UNOFFICIAL-gts210wifi.zip

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.

Aug 14 , 2023 release notes
1. Aug 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-08

CreiX · Aug 24, 2023

pflyaz said:
Tab S2 T810 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

Update your Tab S2 to the latest stock software.

Install a micro-SD card into your Tab S2.

Enable Developer Options – tap Build Number seven times.

In Developer Options, turn on USB debugging.

Connect your Tab S2 to your PC via USB and download onto the micro-SD card three files:

Retiredtab’s latest Lineage 19.1 ROM from lpedia-sf - Browse /gts28wifi-19.1 at SourceForge.net (T710) or retiredtab - Browse /SM-T810/19.1 at SourceForge.net (T810)

NikGapps-core-arm64-12.1-20220709-signed.zip from https://sourceforge.net/projects/nikgapps/files/Releases/NikGapps-SL/

Magisk-v25.2.apk from https://github.com/topjohnwu/Magisk/releases

Magisk is optional if you want/like root.

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)

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

Power off your Tab S2.

Launch Odin on your PC and press OK.

Power up your Tab S2 into Download mode by holding down Home+VolDown+Power.

Then at the Warning screen hit VolUp.

Connect your Tab S2 via USB to your PC, and you should see Added!! in Odin.

Click AP in Odin and select the downloaded TWRP.

In Odin Options, uncheck Auto Reboot.

Click Log tab again.

Click Start in Odin.

Installing TWRP only takes a couple of seconds.

You will see progress in the Log, and Pass at the top of Odin when done.

Step 3 – First boot into TWRP

This part is tricky!

Power down your Tab S2 by holding down VolDown+VolUp+Power.

IMMEDIATELY the screen goes blank, hold down Home+VolUp+Power.

Keep holding down until you see the TWRP home page.

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

In TWRP, select Backup, Select Storage to choose your micro-SD card, check all the partition boxes, and then swipe Backup.

Confirm your backup is good

In TWRP, select Wipe, then Advanced Wipe.

Select all partitions except Micro SD Card (and USB OTG).

Swipe to Wipe.

Back, Back again, then Format Data

Type yes, and tap check.

Back, Back, Back, and select Restore.

Select Micro SD card and your backup.

Restore all partitions and allow restore to complete.

Reboot to System, and confirm you are back to stock.

Step 5 – Install ROM and NikGApps

In TWRP, select Wipe, then Advanced Wipe.

Select all partitions except Micro SD Card (and USB OTG).

Swipe to Wipe.

Back, Back again, then Format Data

Type yes, and tap check.

Back, Back, Back, and select Install.

Select your micro-SD storage.

Select the Lineage-19.1 ROM.

Add more Zips, and select nikgapps.

Swipe to confirm Flash.

Install takes about 3 minutes.

Wipe Cache/Dalvik, and Swipe to Wipe.

Reboot System.

Step 6 – Build your Android 12 Tab S2

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.

At the end of the initialization process, be sure not to choose the Replace Lineage Recovery option, otherwise TWRP goes away.

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!

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”.

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.

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

Restart Tab S2 into TWRP.

In TWRP, install Magisk-v25.2.apk.

Reboot System

In Android install Magisk-v25.2.apk.

Open Magisk and select zygisk in settings.

Restart again.

You now have root. I test by enabling root in FX File Explorer and granting root.

Step 8 – All done! Enjoy!

I do a final and full TWRP backup once the device is solid on Lineage 19.1.

Hi there.
Sorry. I am not able to install the WERP via Odin.
It always stops at " recovery.img"

retiredtab · Aug 24, 2023

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.

pflyaz · Aug 24, 2023

CreiX said:
Hi there.
Sorry. I am not able to install the WERP via Odin.
It always stops at " recovery.img"

View attachment 5985549

Hello @CreiX . I am sorry to hear you haven't been able to get TWRP onto your Tab S2 T810. I'm afraid that I do not have the technical knowledge to advise you on what to do about this. I successfully loaded @retiredtab 's TWRP images onto 3 T710s and 1 T810 by following the procedure I wrote. Maybe there are others who understand Odin better who can provide the insight you need.

CreiX · Aug 25, 2023

retiredtab said:
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.

on my Win11 PC witch is connected to LAN?

CreiX · Aug 25, 2023

pflyaz said:
Hello @CreiX . I am sorry to hear you haven't been able to get TWRP onto your Tab S2 T810. I'm afraid that I do not have the technical knowledge to advise you on what to do about this. I successfully loaded @retiredtab 's TWRP images onto 3 T710s and 1 T810 by following the procedure I wrote. Maybe there are others who understand Odin better who can provide the insight you need.

I alreday tried 4 guides. And I always stop at TWRP

So we have an MONSTER of Samsung device witch is not be able to brick? :/

CreiX · Sep 12, 2023

Found a solution....
I lend me an original SAMSUNG cable... That worked :/ Sorry.

But 1 Problem appeared: Noch Playstore. I guess I chossed the wrong gapps? ( open_gapps-arm-11.0-stock-20220215 )

Question	Answer
Q1. Can I build this ROM for myself? Where are the source and kernel source files?	A1. Yes, you can. The source files are listed below. Kernel https://github.com/retiredtab/android_kernel_samsung_universal5433-selinux Device Tree https://github.com/retiredtab/android_device_samsung_gts2-common-selinux https://github.com/retiredtab/android_device_samsung_gts210wifi Vendor https://github.com/retiredtab/proprietary_vendor_samsung-selinux The build manifest and instructions on how to compile from source are at https://github.com/retiredtab/LineageOS-build-manifests The other patch required for tcp/ip is at https://github.com/DerpFest-11/pack...mmit/22fd53a977eeaf4e36be7bf6358ecf2c2737fa5e
Q2. Is this ROM suitable as a daily driver?	A2. It might be, depending on your requirements. You would need to try it yourself, with your preferred apps, to see if suits your purposes. I've been using it myself since July 1, 2022 with no major issues.
Q3. What do I do if my app xyz doesn't work?	A3. I can't help diagnose problems with random apps I know nothing about. If the app is critically important to you and it doesn't work on this ROM, go back to a ROM where it did work.
Q4. Why is this ROM laggy and/or buggy?	A4. The device will be noticeably slower if you're using any Gapps package. Consider going gapps-free. A lot of apps will work without Google's services, or there exist alternatives that will. Check out F-Droid, Aurora Store, NewPipe, etc.
Q5. What TWRP should I use?	A5. You MUST use TWRP 3.6.2_9. Get it from https://dl.twrp.me/gts210wifi/
Q6. Why should I use this ROM?	A6. You don't have to! If you don't like it, go back to your old ROM.
Q7. Will you offer monthly updates with security patches?	A7. We plan to do so. We will try to update the ROM with the monthly security patches after LineageOS has released them, free time permitting. Each monthly build will be tested to make sure all the "What works" functionality listed in post #1 still works, before it's made available (which might in some cases delay the release).
Q8. I'm a newbie. Can you provide step by step instructions?	A8. We simply don't have the time to do this, but there are lots of tutorials, videos, etc online showing how to flash custom ROMs and how to deal with common problems. Newbie questions are also accepted in the XDA General Questions and Answers forum. Having said that pflyaz has kindly provided instructions in post #7.
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. Provide an adb logcat of the problem, and if possible describe how to reproduce it. Note that I can't help if it involves downloading any app I don't already use that requires payment or creating a userid/password. To get a logcat, open a terminal window on your PC, connect your device to it via USB, and do this: Bash: `# clear the logcat first adb logcat -c # start logcat trace adb logcat > problem.txt # reproduce problem # wait until problem has occurred, # then stop trace by hitting ctrl-c then zip the problem.txt file # before uploading it.`
Q10. How long will you build 19.1 for this device?	A10. For now, 19.1 will be built for all of 2022. After that, we will make a decision depending on a number of factors.
Q11. Do I need to erase everything and format my data before installing this ROM for the first time?	A11. If you're coming from stock Samsung Android, or an earlier version of LineageOS, or a different custom ROM, you MUST 'clean flash': boot to TWRP recovery, wipe system, data, dalvik/art cache, and cache partitions, then Format Data, then install this ROM. If you don't do this you're likely to run into problems, such as getting stuck at the boot animation for more than 5 minutes.
Q12. What Gapps should I use?	A12. Your choice! There are several well-known Gapps packages, such as NikGapps, BiTGapps, OpenGapps, and MindTheGapps. Do your own research as to what is the most reliable gapps option for you. As a courtesy to gapps users, I opened a thread at https://forum.xda-developers.com/t/...on-for-19-1-roms-sm-t710-and-sm-t810.4480041/ for you to discuss gapps. Do not discuss gapps in this thread. Thank you. You could also consider Google alternatives, such as Aurora Store, which mirrors the Google Play Store apps but doesn't need any Google services itself. Many Play Store apps do not actually depend on Google services. If you are going to install any Gapps package, follow the installation instructions given for that particular package.
Q13. I'm having problems with Gapps. Can you tell me why it's not working?	A13. I can't answer any questions about Gapps, because I don't use them. Ask your questions on the XDA thread for the Gapps package you're using.
Q14. Why isn't my post answered?	A14. There are several possible reasons: the question is answered in the FAQ (in which case it will be ignored completely); or it involves apps or operating systems that I don't use; or it's about Gapps, which I don't use; or I simply have not had time to answer any questions.
Q15. What speed up/optimization tips do you suggest?	A15. These steps can make a big difference to performance: Turn off animations. Go to Settings > System > Developer options, scroll down to the Drawing section, and set Window, Transition and Animator scale all to "Animation off". Don't install Gapps unless you depend on something that only Google is providing. Use Aurora Store to get your preferred Play Store apps - they will all be available on Aurora Store. You can choose to access this anonymously or use a Google account. Don't run more than two apps at the same time. You can probably listen to music in the background and use a web browser at the same time. Use a web browser with built-in adblock and privacy features, such as Brave. Use NewPipe to watch your streaming content. It has built in adblock so you don't have to watch forced ads. Look for apps that are open source, ad-free and lightweight.
Q16. Does this ROM support Magisk so I can root my device?	A16. Magisk works with this ROM as reported by beta testsers, but that could change with any revision and changes by Google. However I don't use it myself and can't help with any related issues. Direct any questions about Magisk to the XDA Magisk forum.
Q17. Will this ROM ever become official?	A17. With 19.1, legacy devices like ours will NEVER be official due to lack of ebpf support. See https://lineageos.org/Changelog-26/
Q18. What is the difference between this ROM and others?	A18. This ROM tries to be pure LineageOS with little or no modification. Other ROMs may come with a different UI, different bundled apps, etc.
Q19. Will there be any major 19.1 code modifications in the future?	A19. There may be some major modifications along with some slight tweaking to the SEpolicy, small bug fixes and minor code cleanup, but all the hard work - getting the rom up and running, and fixing all the major bugs - has been done.
Q20. Why did you fork the trees?	A20. I wanted my own private branch where I could make changes that would only affect my own personal builds.
Q21. Can you build a variant of this device? For example, a LTE or S-pen version?	A21. I cannot and will not try to build for a variant device if I don't physically have that device. I have to be able to boot and test it myself, and there's no guarantee that I can get those variant features working.
Q22. Can I load this ROM on a variant device like LTE or S-pen version?	A22. This ROM is for the device explicitly listed and will only work on that device. Do not try to install it on any other device. ONLY if you are an advanced user and understand TWRP, adb, odin, heimdall, etc, you could try loading it on a LTE or S-pen variant by modifying the updater-script, but be warned: there are likely to be problems, including a bricked device, bootloops, or the ROM not being able to support the functionality of LTE/S-pen.
Q23. Does this ROM have any wifi connection issues?	A23. This ROM's wifi has been stable on the specified device ever since lpedia and I determined the root cause of the wifi problems back in July 2021 and re-installed the original S2 network 'blobs' with LOS 17.1.
Q24. Is this ROM secure so I can do financial transactions?	A24. Although Android monthly security patches do improve general security, this ROM's outdated kernel and old proprietary vendor blobs/drivers will NEVER get updates of any kind, and could have significant security holes. In addition, although the ROM is SElinux enforcing, there's a good chance that the rules written (about 800+ lines of code) have some errors. If the device is rooted, this would further weaken the security. With this information, it's up to you to make an informed decision about whether you trust this ROM to be secure enough for your financial transactions.
Q25. How do I turn off the taskbar at the bottom of the screen?	A25. Goto settings, system, buttons and disable taskbar.
Q26. Okay, I understand the consequences and willing to take the risks outlined, now where can I find the ALPHA rom?	A26. Downloads are at https://sourceforge.net/projects/retiredtab/files/SM-T810/19.1/

[UNOFFICIAL][ROM]ALPHA LineageOS 19.1 for SM-T810 - Sept 16, 2023

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