yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Original Android Development] potsieanz:
I am having a similar periodic problem the tablet restarting as soon as i try to use it after powering on and then after each unexpected restart. It just started again this morning after a large number of Google Play Store updates last night. Cache & Dalvik wipe did not fix it and there is no newer update to Lineage OS16 to update to

Can you clarify, were you able to uninstall the Google App or did you just disable it, as I don't seem to have an option to uninstall?

Has anyone else found any other way to fix the problem?
[Galaxy Tab S2 Original Android Development] stlstl:
What I did was:

Wipe system + cache

Reinstalled the LOS image and the Pico version of GApps

After that I could uninstall the google App

Do you have a SD card on the tablet? If you do before reinstalling try to remove it. If it solves the problem make a backup and format the SD card.
[Galaxy Tab S2 Original Android Development] KaZo58:
Does Magisk Root work? My T813 with Lineage OS 16.0 ( 2020-11-21 and 2020-11-28 ) stucks on LOS Boot logo.

I wiped system and cache partitions, flashed LOS, latest Open Gapps (Pico) and at least Magisk (21.1). This method worked for years and last time it just stuck. Is it possible to get any logs?
[Galaxy Tab S2 Original Android Development] OhioYJ:
Yes, Magisk works. I have three T-813s running LOS and Magisk. Never wiped system though. All running Nano gapps. You can't flash Magisk modules anymore from TWRP. I'm still running the beta version of TWRP that had some fixes in it (Version 7 I think in the TWRP thread from another user)
[Galaxy Tab S2 Original Android Development] supachris:
Here also. Magisk is working fine. I'm also using the Beta 7 TWRP from Akipe because the official one does not support OTA updates on encrypted devices (no decryption ask in twrp while running script).
[Galaxy Tab S2 Original Android Development] DA6030:
Any luck on a long-term fix for this? I'm experiencing the same on ripee's LOS17.1.

Did you try exactly the steps above (e.g., no data partion wipe)...you just straight downgraded to a minimal GApps package without a data rest? That's a bold move, and I am impressed!
[Galaxy Tab S2 Original Android Development] stlstl:
After those issues with LOS 16 I installed LOS 17.1 and the Pico version of GApps and the random reboots started happening again. I then removed the SD card from the tablet and no more reboots. I formatted the SD card in the tablet with the Google Files App and never had the problem again but I don't have the Google App installed.

When I upgrade the ROM with the same "version" of LOS I only wipe the cache and system partitions and install GApps. I never noticed any issues because of that both in my phone or tablet. When I installed 17.1 over 16 I did a clean install, wipe all partitions, format etc.

About the GApps package: it's installed in the system partition but when the apps are upgraded via playstore they are "replaced" by the upgraded version that's going to be installed in the user data partition. When I installed the Pico version of GApps the Google app wasn't installed in the system partition and that's and that's why I was able to completely uninstall it afterwards. Hope that makes sense.
[Galaxy Tab S2 Original Android Development] DA6030:
Oh fascinating. Isolating the Google app was a huge troubleshooting help!

After many factory resets and various ROM/GApps combos, I'm now on LOS16 (official) with stock GApps package and all of the permissions revoked from Google app. Previously was crashing within a few minutes, and now crash free a couple hours so fingers crossed that will do it.

This is on a hunch that the crash is caused by Google app accessing something it shouldn't (e.g., Phone that doesn't exist on this tablet, Camera that we know is wonky on this ROM), and by revoking those permissions the Google app just won't try, instead of trying and crashing.

If that holds for a couple days, I'll wipe and go back to LOS17.1, to try the same approach. Finally, might try feeding Google back its permissions one at a time to see if I can further isolate.
[Galaxy Tab S2 Original Android Development] stlstl:
Do you have a SD card installed? In my case it's part of the problem somehow.

Update: I got a Google Nest for Christmas and installed in the 17.1 ROM the Google Home and Google App to configure it. Major mistake, the tablet started to reboot constantly and nothing I tried solved the problem. Since I had to wipe everything and format I decided to give the Official LOS 16 another chance. I installed the latest version available (build 12-26) and the pico version of GApps (doesn't have the Goggle app) . Everything seemed fine for about one hour until the reboots started to happen again every time I opened Facebook Messenger. I'm done with LOS 16 for this device.

Now I reinstalled the latest build from LOS 17.1 (12-27) and the Pico version of GApps and no more reboots. I had this combination of software for weeks without any major issues.
[Galaxy Tab S2 Original Android Development] DA6030:
After a day of stability on LOS 16 with all the permissions revoked from Google App, I'm now back on LOS 17.1 with Stock GApps package, with most of the permissions revoked from Google App. I've been turning off the tablet overnight, so can't give a true uptime, but I've not had any reboots in the 1-2 hours/day that I've been using it.

I've got a strong hunch that the crash is related to something device-specific not working as expected, and Google just recently started querying that thing more or differently than it used to...but theoretically any app (with necessary permission) could just as easily trigger the crash. This is based on my experimentation where I tried a day with no GApps package (just used the FOSS that ships with LOS) and still got an occasional crash, although less frequently.

So, if issues do pop up, I plan to revoke permissions related to the things we know don't work (e.g., phone, call log, camera) from ALL apps to see if that helps.

I did initially (from when I got the device, until this started happening) have an SD card mounted as adoptable storage. This was on LOS 17.1+Stock GApps. But as soon as the issue started a couple weeks ago, I removed the SD card, and have left it out through all of my (15 or more) experiments, and haven't tried putting it back.

FWIW, I have not tried installing Google Home nor FB Messenger, so I doubt either of those is (directly) involved...although I'm sure Google Home and Google app and Google Play Services are all intertwined.
[Galaxy Tab S2 Original Android Development] stlstl:
I'm trying to make some sense of the problem since apparently only affects a few devices.

Do you activate developer options? And if yes do you disable animations and or enable the reset to recovery option?

Thanks
[Galaxy Tab S2 Original Android Development] potsieanz:
I have been suffering with reboots using both 16 & 17

Following the advice here, I have had a number of days reboot free after the final step which as to remove the SD card

So setup is

T813

LOS16 with Pico gapps (no google app installed)

No SD card

Developer options are on

Touch wood!
[Galaxy Tab S2 Original Android Development] DA6030:
Great questions! Yes, I always activate developer options. I always enable ADB, never touch animations, and sometimes enable the advanced reset menu.
[Galaxy Tab S2 Original Android Development] stlstl:
The problem of constant reboots I was having with LOS 16 is now happening in 17.1. After I made another clean install of 17.1 I only installed Chrome, Gmail and the Google files App. Apparently after I enabled developer options to disable animations (something I always do) and enable the reset to recovery option, the tablet started to reboot constantly. I was about to give up on LOS on this device and go back to the factory ROM when I saw there was a new TWRP version and a new 02-01-2021 ROM of LOS 16. Updated TWRP, made a clean install of the ROM, the Pico GApps, only installed Chrome and didn't enabled developer options. I still have the SD card inserted. So far so good but I'm afraid to even look at the tablet in a wrong way, it might reboot :)

I'll install some more apps one at a time and update here.

Thank you guys for having interest in diagnosing the problem.
[Galaxy Tab S2 Original Android Development] DA6030:
Fascinating! Still no issues here, going on a few days, with this setup:

1. LOS 17.1 + Stock GApps package.

2. Manual revokation of most permissions from Google App.

3. I'm NOT signed in to any Google accounts on the device. Thus, I'm using most apps ( Chrome, YouTube, and a bunch that I sideloaded: Netflix, etc) unauthenticated to Google.

Note that I had a pretty similar setup a couple weeks ago, although without proactively revoking permissions from GoogleApp, and that rebooted every few mins.

I have not checked on Developer Options, but will report back.
[Galaxy Tab S2 Original Android Development] stlstl:
After I instaled Gmail the reboots started again when I oppened any page on Chrome. I do have my Google account configured and that's a must for me. Probably the reboots have something to do with the Google account, saved passwords and settings etc.

It's the end of the line for me, going to try the light versions of the stock firmware without the Samsung crap. The reason I insisted on LOS in my tablet it's because it runs very, very well on my LG G4 phone.

Thanks
[Galaxy Tab S2 Original Android Development] alehop69:
It´s a shame hearing that... But if you don´t mind, would you tell me what light version of the stock firmware will you use? Maybe I´ll need it in the future..., who knows...

Thanks in advance...
[Galaxy Tab S2 Original Android Development] stlstl:
I've installed this one:

https://xdaforums.com/t/rom-7-0-nougat-stock-lite-v8-t713-t813.3746583/

It's basically the stock ROM without most of the apps and services from Samsung and I've installed Nova Launcher. It's fast and everything works but I do miss some features from Android 9/10. Maybe I'll try LOS again in the future If I see reports the reboot problem was fixed.
[Galaxy Tab S2 Original Android Development] potsieanz:
My T813 continues to run perfectly now on LOS16, with no reboots. Given this, I am reluctant to take unnecessary new LOS updates. Are Lineage still developing the OS as there is never anything in the change log, and if not, what is actually in the new releases? Security patches?
[Galaxy Tab S2 Original Android Development] OhioYJ:
There has been stuff in the change logs? It's not as active as some devices, but still.

I have 4 T813s in the house that I've been updating as I see changes, no issues.
[Galaxy Tab S2 Original Android Development] supachris:
Hi all,

Is there a way to increase the microphone gain? The built-in is very very low, also when I connect a analog (known good) headset to the 3.5mm jack, the far end cannot hear me good. So I assume this is a software problem. I tried to increase some gain values in the mixer_paths file in system/vendor/etc but it does not help.
[Galaxy Tab S2 Original Android Development] Ferchurito:
Does anyone have the apk file of the gcam that is pre installed with this rom?
[Galaxy Tab S2 Original Android Development] FiSh-MoB:
This is the camera apk, that comes with this Rom.
[Galaxy Tab S2 Original Android Development] tony950:
it looks like official supoort for lineageos 16 for the sm-t813 is dead now. the lineageos site says "WARNING: The Samsung Galaxy Tab S2 9.7 Wi-Fi (2016) is no longer maintained. A build guide is available for developers that would like to make private builds, or even restart official support." sucks
[Galaxy Tab S2 Original Android Development] antoniorecio:
Does anybody knows if this is temporary?

Won't the sm-t813 officially supported no more?

Thank you and regards.
[Galaxy Tab S2 Original Android Development] supachris:
This is permanent. LOS dropped official support for all Pie (9.0) devices.
[Galaxy Tab S2 Original Android Development] tony950:
as mentioned, yes it is perm. the guy who started this thread and built los 16 for the sm-t813 says he no longer owns a sm-t813. he moved on to the tab s5e. there is still someone maintaining lineageos 14.1 for the sm-t813 if you dont mind android 7. https://xdaforums.com/t/rom-unofficial-lineageos-14-1-t813-t713-delta-nougat.3935079/
[Galaxy Tab S2 Original Android Development] KritonK:
There are unofficial LOS 16.0 and 17.1 daily builds at https://lineageos.wickenberg.nu/gts210vewifi

A few days ago I dirty flashed what was then the latest version of 16.0 over the last official version, to get the February security updates. The system updater now points to this repository, and newer versions are already available. Things are now better than before, as daily updates are available again, should I ever need them, instead of weekly ones.

The 17.1 builds are based on ripee's sources from the 17.1 thread, so they are bug compatible with that version, but they might still be worth considering, if automatic updates work for them, as well.
[Galaxy Tab S2 Original Android Development] supachris:
Do we need to change the signing keys before flashing the unofficial version? Is this script needed? https://wiki.lineageos.org/signing_builds.html#using-a-script

Thanks a lot.
[Galaxy Tab S2 Original Android Development] KritonK:
The script you mentioned seems to be part of the build procedure, not the installation procedure. I've never had to do anything with keys, when switching ROMs.

To switch to the unofficial build, what I did was the following:

Boot into recovery.

Take a backup of the system. (If something goes wrong, you can restore from backup and go back to the official build, without having to install from scratch. You may need an external SD card or USB OTG device, if you don't have enough space.)

Install the image of the unofficial version as a system image.

Clear dalvik/cache.

Reboot.

Delete the backup. (In my case, everything went well. Even gapps and magisk survived the switch.)

Note that the above procedure is for switching from the official 16.0 build to the unofficial 16.0 build. If you want to try the 17.1 build, you will have to install a custom version of TWRP and perform a clean flash. Check the 17.1 thread for details and for the limitations of that version.
[Galaxy Tab S2 Original Android Development] bschatzow:
I also did a dirty flash and no issues.
[Galaxy Tab S2 Original Android Development] supachris:
I also did a dirty flash today to the unofficial version and all went okay. No issues so far.
[Galaxy Tab S2 Original Android Development] Entodoays:
What about these builds? Who is building them? They're unofficial, but from what I understood they are updatable OTA. So, there has been some tweaking with the sources.
[Galaxy Tab S2 Original Android Development] neolovich:
Just bought a Galaxy Tab S2 and flashed the last official LOS 16.

In the Trebuchet Launcher i can only hide apps in the drawer, when i activate a pattern or a PIN.

On my LOS 17.1 Smartphone that is not the case. There i can hide apps in the drawer without having pattern or PIN activated.

Is it a bug or is it just available from Trebuchet 10 and up?
[Galaxy Tab S2 Original Android Development] tindroid:
Is there any chance we get official LineageOS 17.1 some day? I'm willing to help.

Struggling to build my own 16.0 at the time:

File "libcore/annotations/generate_annotated_java_files.py", line 34
print '// Do not edit; generated using libcore/annotations/generate_annotated_java_files.py'
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print('// Do not edit)?
[ 0% 158/86559] target Java source list: ims-common
File "build/make/tools/normalize_path.py", line 25
print os.path.normpath(p)
^
SyntaxError: invalid syntax
[ 0% 159/86559] target Prebuilt: sdk_v21 (/home/tindroid/android/linea...target/common/obj/JAVA_LIBRARIES/sdk_v21_intermediates/classes.jar)
ninja: build stopped: subcommand failed.
21:37:07 ninja failed with: exit status 1

I took the blobs from https://github.com/gts210vewifi-dev/proprietary_vendor_samsung_msm8976-common, could this cause the problem?
[Galaxy Tab S2 Original Android Development] rinigus:
Looks like you are using python3 while the scripts are for python2.
[Galaxy Tab S2 Original Android Development] andreaschen:
Anyway to get a last build of LOS 16.1 for T813? So sad the maintenance is dropped.
[Galaxy Tab S2 Original Android Development] KritonK:
Check out the unofficial builds at https://lineageos.wickenberg.nu/gts210vewifi

They recently switched from daily to weekly builds, but they're still maintaining the 16.0 ROM with security updates (currently includes the March 5 security patches) and possibly other updates

Dirty flash the latest image once, and then you can use the system updater for subsequent updates. I switched to these builds when LOS dropped official support for the T813, and the tablet feels as if it is still running the official version.
[Galaxy Tab S2 Original Android Development] 2faraway2:
Or take the build with microG included from here: https://download.lineage.microg.org/gts210vewifi/

I'm running the latest april build without any prob .. :-)
[Galaxy Tab S2 Original Android Development] andreaschen:
Found some archives here: https://lineageosroms.com/

Thanks buddies!
[Galaxy Tab S2 Original Android Development] wowi63:
There are beta builds for the tab from /e/ OS, latest Android 9 (LOS 16) from 20210416, secrity patch level from march. /e/ OS is based on LineageOS for MicroG and promises to get rid of Google and offers you a cloud - they try to offer a full-comfort system.

https://e.foundation/

https://doc.e.foundation/devices/gts210vewifi/
[Galaxy Tab S2 Original Android Development] Topster77:
I have very frequent Wifi disconnects. I changed the Wifi router, but sometimes, every few minutes, the connection is dropped and re-established again. No idea why. Other devices on the same router are fine.

Any ideas? Thanks!
[Galaxy Tab S2 Original Android Development] rogers11:
Does anyone know why builds for gts210vewifi are disabled at https://lineageos.wickenberg.nu/
[Galaxy Tab S2 Original Android Development] rollinrollinrollin:
^^ The last build is from 2021-11-26...not that old. Perhaps he has a real life or nothing significant changed source code wise or too little donations or there are technical problems or ...or ...or...
[Galaxy Tab S2 Original Android Development] rogers11:
It is not just "not built", it is disabled. Like for all devices with 16.0 builds. Seems to be really dead now.
[Galaxy Tab S2 Original Android Development] Spielmops:
I can offer the November-build of LineageOS 16.0 gts210vewifi:

https://hartmut.homelinux.org/nextcloud/index.php/s/8oMK2pXmAmwrDHw

Spielmops
[Galaxy Tab S2 Original Android Development] wowi63:
Well, i got LineageOS for MicroG 16.0 from 25.12.2021:

gts210vewifi
[Galaxy Tab S2 Original Android Development] Entodoays:
Is it possible to install opengapps on that ROM and remove microG?
[Galaxy Tab S2 Original Android Development] wowi63:
Excuse, i am just a user, i do not know.
[Galaxy Tab S2 Original Android Development] 2faraway2:
Yes, sure ..

You have to be rooted, then you have to remove the microG system apps , reboot and install gapps of your choice.

But why in the hell s.o. would do this ? ;)
[Galaxy Tab S2 Original Android Development] wowi63:
Yes, why? I get updates every two weeks.

I think you do not want to make the procedure every 14 days?
[Galaxy Tab S2 Original Android Development] 2faraway2:
Well, what I meant was: Why to remove microG ???

I'm totally happy without the googls stuff/spyware and can get my apps via fdroid or aurora store :)
[Galaxy Tab S2 Original Android Development] KritonK:
My T813 is running pitrus' unofficial build of LOS 16 from https://lineageos.wickenberg.nu/gts210vewifi which was discontinued some time in November.

Today I was greeted by a notification that there is an update for my tablet and, sure enough, there are new LOS 16 builds for all four variants of the 2016 edition of the S2 tablet on the wickenberg web site.

I installed the update, and now my tablet has the December 5, 2021 security patch level. If this wasn't a one-time build, maybe we'll see the January security patches in a week or two.
[Galaxy Tab S2 Original Android Development] fmc000:
Yes, the same for my T719. The only problem is that these new releases break the SIM card detection (just verified myself but it was already reported).
[Galaxy Tab S2 Original Android Development] dead90:
With factory reset i will lost all the things on tab? I mean flashing file that i have to use for install Android p

Inviato dal mio ONEPLUS A5010 utilizzando Tapatalk
[Galaxy Tab S2 Original Android Development] AL_IRAQI:
factory reset on twrp will wipe, Data, Cache only
[Galaxy Tab S2 Original Android Development] Razunter:
There is some weird issue with image scaling in some apps. Image gets very pixelated like it uses bilinear scaling or worse. I had this issue only with Twitch in OmniRom (8.x), but now it affects other apps too.

720p: dropbox .com/s/syl0fc25hly4rri/Screenshot_Twitch_20181004-183454.png?dl=0

1080p: dropbox .com/s/j9c9e5rv0u23iaq/Screenshot_Twitch_20181004-183511.png?dl=0

Had to break the links since I haven't reached 10 posts limit yet :rolleyes:.

Use 100% zoom to see the issue.

Any way to fix this?

Also my tablet loses Wi-Fi pretty often and reconnects immediately, but I suspect it's a hardware issue, I've had it for some time.
[Galaxy Tab S2 Original Android Development] dead90:
Best gapps and working twrp? Where to find

Inviato dal mio SM-T813 utilizzando Tapatalk
[Galaxy Tab S2 Original Android Development] Dastonie:
You can use opengapps.org
[Galaxy Tab S2 Original Android Development] gjcamp:
Same for me and I used (open_gapps-arm64-9.0-full-20181007)
[Galaxy Tab S2 Original Android Development] tandem2:
Is hidden wlan working now?

Thank you.
[Galaxy Tab S2 Original Android Development] gjcamp:
Hidden WLAN

Yes. There is a setting in Advanced Setup after you manually enter your SSID during the initial setup that allows for the device to scan for hidden networks.

I have been running for a week without any connectivity issues or the ROM in general.

Thank you LuK1337 for developing this great ROM and welcome update for my device.

​

(lineage-16.0-20181002_090021-UNOFFICIAL-gts210vewifi)
[Galaxy Tab S2 Original Android Development] Bubbler4343:
Pixel launcher forces closes for me, currently on 9.0 stock opengapps. I clean flashed lineage 16.0 before the gapps and am also on latest twrp.
[Galaxy Tab S2 Original Android Development] GK555:
My left and right audio is reversed when using this ROM. Anyone else have this issue? Is there an easy fix (other than reversing my earphones)?
[Galaxy Tab S2 Original Android Development] VanoSM:
I have the same from LOS15
[Galaxy Tab S2 Original Android Development] Deltadroid:
This commit should have fixed left/right speakers on headphone

https://github.com/LineageOS/androi...mmit/8f1d63e49e8ca85e1f1be2da26bfe786f70d140d
[Galaxy Tab S2 Original Android Development] churchner420:
Hey guys, does Magisk already work with this rom or do I need to install another root solution?

---------- Post added at 08:34 AM ---------- Previous post was at 08:08 AM ----------

Flash this

https://xdaforums.com/android/apps-games/app-unmodified-pixel-3-launcher-t3852857

Includes Pixel 3 Launcher + Recents
[Galaxy Tab S2 Original Android Development] tjupille:
Magisk works fine for me on a 713; I don't expect the 813 to have any problems.
[Galaxy Tab S2 Original Android Development] kdrkdr:
Works for me 813
[Galaxy Tab S2 Original Android Development] AL_IRAQI:
The last build on sourceforge is 72MB only ?
[Galaxy Tab S2 Original Android Development] dead90:
No november updates?

Inviato dal mio SM-T813 utilizzando Tapatalk
[Galaxy Tab S2 Original Android Development] mjheid.muc:
Hi, somehow I get an error that this file is not for T813. I think I followed all instructions.

I installed TWRP the first time in my tab just in case that helps and I don't have mounting problems. Everything seems to be fine here.
[Galaxy Tab S2 Original Android Development] Essentrix:
Did you download the correct file; lineage-16.0-20181108_181634-UNOFFICIAL-gts210vewifi.zip?