yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Android Development] lpedia:
Unfortunately, removing (or not even registering any) fingerprints doesn't entirely remove the reboots. :( It might possibly make them less frequent - but I've always had far fewer actual reboots than BootAnimation loops, so it's hard to tell. I have had one reboot in the past week or so.

Are you seeing fewer wifi connection dropouts on 2.4GHz?

I agree that this device doesn't appear capable of more than ~150Mbps on the 5GHz band, and given that this about what 2.4GHz might manage, you wouldn't lose any network performance by going to 2.4GHz (and you get a longer usable distance from the access point). I haven't tried this, but only because I'd have to separate the 2.4GHz and 5GHz SSIDs and haven't got around to doing it.
[Galaxy Tab S2 Android Development] lpedia:
Good idea! I'll try doing the same with MacroDroid. Dropping to into the never-ending BootAnimation loop does seem to happen only when it's been sitting idle for some time. I've started turning the device right off overnight, because it was often happening then.

Random full reboots always happen while the device is being actively used, in my experience, so waking the screen from time to time won't change that. :( But these are less frequent, anyway.

I have MacroDroid triggering at boot and screen unlock to check wifi status and if necessary force reconnect. That seems a good workaround, as I haven't had to manually reconnect since I set that up (and ironed out some bugs ;)).
[Galaxy Tab S2 Android Development] Flax_:
Have you guys tryied to update the google app via apk mirror?

Maybe there is also a bug (not only google assistant),that crashes the device.

Cause honestly with myT810 i have 0 random reboots and 0 batterie drain (out of normal range).

The only thing that i have issues with is (since 01.01.) i had like 3 wifi drops and the faint mic.

Mic is pretty annoying dure the fact that my daugther cant use the tablet for online meetings.
[Galaxy Tab S2 Android Development] Flax_:
if you have T810 - please note, this is what i used and it helped. Im not responsible for the qualtiy of the apps from APK Mirror.

fix Google Assistant

Google App 11.41.10.23 ARMV7a 320DPI

There are never Versions out, but at the time i downloaded it, this was the way to go and it works fine.

Running Netflix App from APK Mirror as well

Netflix Version: 7.84.1 build 28 35243 (35243)

same here. there are never versions out.

The thing with Netflix is, that due the fact that this rom is not officialy we will have widevine l3 !

Thats why you cant find Netflix on Playstore and you cant watch Netflix in HD!!! Only SD will work even with the apk mirror installations.

There is a modded Netflix apk out, that will play in HD, but due legal facts i wont post a link here.
[Galaxy Tab S2 Android Development] freshsushifish:
Hi

Thanks for the hard work.

I installed the 17 and 16 ROM on a T715, coming from stock with a clean install each.

Bugs recognized:

On the LOS 17 ROM

- WLAN problem (Wlan connection is not stable and not re-established after unlock)

- Random reboots and stuck in splash screen animation (twice on day 2)

- Even if Internet is connected and works, one app throws a message that it is offline and not all content will work (infact, it does work)

- Camera works with OpenCamera

- First set-up with fingerprints, which might explain the reboots. But removing them later did not improve the situation.

GPS not tested

On teh LOS 16 ROM

- WLAN issue as well, but more stable

- No reboots or other serious issues, but:

- The tablet gets quite warm even under normal reading / surfing, the chip reaches > 80°C, so I guess throttling is somehow broken. This makes the ROM quite unusable (the tablet really gets warm and I fear it will not doing any good, also battery life is low then)

Tried also the Resurrection Remix ROM in comparison. It is based on a similar release date from LOS 17. It has the WLAN problem, but no random reboots (did not install any fingerprints this time) so far, but the tablet is a bit more laggy / slower in general.
[Galaxy Tab S2 Android Development] metterschling:
Interesting. I'm running LOS16 20210109 on the T715 and no WiFi issues here with properly configured dual-stack IPv4/IPv6, using 5GHz WiFi. Also no issues with tablet heat and excellent battery lifetime - around 3 days with approx. 1 hour screen-on time per day.

I did have WiFi issues (frequent disconnects/reconnects) with another tablet when IPv6 DNS was not configured correctly on my router. Looked to me that IPv6 gets precedence if your provider has enabled it for you.
[Galaxy Tab S2 Android Development] lpedia:
This comparison is interesting!

I haven't tried RR. I didn't have any battery heating problems with 16.0, and didn't notice any wifi dropouts, but I only tried the earlier 2020 version, not the ones built in Dec 2020 and Jan 2021.

Battery life is very good on 17.1 on my device (barring bootanimation loops), and in general the device performs very well with this ROM. The wifi and reboot / animation loop issues are a nuisance but not unbearable, so I'm sticking with 17.1.
[Galaxy Tab S2 Android Development] elsquare:
@ripee - first of all: a TRILLION thanks for your extraordinary work keeping these babies alive and up to date. They are in daily use by my kids now, and doing a great job despite their age.

Only problem I have with LOS on these (and also on S4 LTE mobiles) iis the (known) problem that "netguard" VPN/Firewall app by m66b does not work (all traffic gets blocked on LOS - known issue with (about all?) LOS versions. See this where it has come up multiple times and here.

However: Just now, it appears a fix has been implemented for klte* and hlte* devices, see here.

Could you have a look at those changes for klte / hlte and see if you can get it over to the builds for gts210xxxx?

Edit: On LOS 17.1 atm
[Galaxy Tab S2 Android Development] bmwdroid:
FYI As Netguard doesn't work on LOS ROMs higher than 14.1 I'm using AFWall+ on these devices.

Doing the same job but needs root of course.
[Galaxy Tab S2 Android Development] elsquare:
Sure, me too, but netguard is better I think, and it's a pitty it didn't work up to now, long known topic. So I really hope "doesn't work" is about to be history. Fyi, for the ks01ltexx (S4), kyasu, the maintainer of that rom already responded and said it's fixed in latest LOS 18.1 builds for those devices... I'm just about to try that.
[Galaxy Tab S2 Android Development] elsquare:
Tested an updated LOS 18.1 build for my ks01ltexx for which kyasu said mentioned changes from the klte*/hlte* were also applied. Can confirm that with that most recent LOS for those S4, Netguard now works (at least as long "filter traffic" in "advanced options" is OFF. If ON, it breaks.
[Galaxy Tab S2 Android Development] bmwdroid:
@elsquare good to know, so I hope it will be implemented for the ROMs for my devices as well.
[Galaxy Tab S2 Android Development] UFORudi:
It is possible install LineageOS 17.1 on my SM-T815 with Odin ?

At update from 20210207 to 20210221 somehow resulted a bootloop.

I can't see another solution. Pls !
[Galaxy Tab S2 Android Development] MrBlubke:
have you tried to get back into TWRP?
[Galaxy Tab S2 Android Development] lpedia:
You should be able to get back to recovery mode either with "adb reboot recovery" or using the button combinations.

While it's in the boot loop, check whether adb can see it. If so, "adb reboot recovery" should work.

Otherwise, power the device off by plugging it into a charger and holding Power+Volume Down buttons until the screen goes off. Power+Volume Up should then get you to recovery.

Once you're in TWRP, try just wiping dalvik and cache and then rebooting. Sometimes that works. If not, try a clean flash, if you dirty-flashed the first time.
[Galaxy Tab S2 Android Development] UFORudi:
Yes, but olso bootloop results.

I can download (Odin) mode as the only one to load.
[Galaxy Tab S2 Android Development] lpedia:
Do you mean that it bootloops when you try to go to recovery, or does TWRP come up normally?
[Galaxy Tab S2 Android Development] UFORudi:
It bootloops when try to go to recovery (Key combination then try it boot... boot...boot as far as home screen).
[Galaxy Tab S2 Android Development] lpedia:
What version of TWRP are you using?
[Galaxy Tab S2 Android Development] UFORudi:
twrp-3.3.0_9-0-gts210ltexx
[Galaxy Tab S2 Android Development] lpedia:
Try 3.5 - see thread [RECOVERY][OFFICIAL] TWRP 3.5.0_9-0 [T710][T715][T715Y][T810][T815][T815Y]
[Galaxy Tab S2 Android Development] UFORudi:
Odin to show: Pass!, but bootloop !
[Galaxy Tab S2 Android Development] lpedia:
I think you need to describe, step by step, just what you did to get the device into this state. Include the configuration and status of the device beforehand, version of Odin, and versions of recovery and ROM before and after.

Someone with more knowledge than I have might then be able to help you out.

Good luck!
[Galaxy Tab S2 Android Development] UFORudi:
Thanks a lot.
[Galaxy Tab S2 Android Development] UFORudi:
Welcome,

the following software error occurred on the tablet:

- type Samsung Galaxy Tab S2, SM - T815

- Android: Lineage OS 17.1 (Android 10)

- Custom Recovery: TWRP-3.5.0_9-0-gts210ltexx

I recently upgraded from 16.1 to 17.1. Everything went smoothly

and my beauty worked.

An update to 17.1 (20210221) was received yesterday. With TWRP i wanted to do it but the reboot didn't come with Custom Recovery up, but also the original. I updated with that, from then on boot only Samsung runs to the boot image, then stops.

If i start TWRP with a key combination, then also stops.

(It was still a bootloop yesterday !!!???)

Can it be improved?

Now I am trying to recover an earlier TWRP Backup file from the SD card, but TWRP doesn't start either, I don't know how to restore.

Only the Download mode can be lured, but I don't know with Odin, for example how to restore / repair Lineage OS.
[Galaxy Tab S2 Android Development] bmwdroid:
Something seems to be messed up with your T815 so imo it's best to start from scratch.

Flash latest multiple part (AP, CSC, BL, CP) stock ROM (to get via samfirm_reborn) with Odin.

Test if it works and flash TWRP again.
[Galaxy Tab S2 Android Development] UFORudi:
OK, but why did i only get one file ( 2.6 GB) via SamFirm_Reborn: T815XXS............_HOME.tar.md5 ?
[Galaxy Tab S2 Android Development] bmwdroid:
Because you didn't check "Binary" or "Factory mode".

Can't remember what it's named on this version but that pulls multiple part ROM from Samsung's server.
[Galaxy Tab S2 Android Development] UFORudi:
It worked! Thank you very much. Android 7.0 is already playing music !!!!!!
[Galaxy Tab S2 Android Development] bmwdroid:
Glad I could help.

You're allowed to hit the "Like" button now. 😉
[Galaxy Tab S2 Android Development] nabla²:
I was able to successfully install lineage-17.1-20210221-UNOFFICIAL-gts210wifi on SM-T810. Looks good. However, I wanted to add another user (for my kid). After logging in, accepting 2 factor authentification also for me as a parent, I receive an error and cannot finish. Is this expected? Any way to solve it?

Thanks!
[Galaxy Tab S2 Android Development] schnoeselmeier:
Thank you so much for this fabulous rom! I would have never dreamed of Android 10 on my old T-710. Great to finally see button back lights working again! Makes it feel like new tablet. Music sounds good. The microphone still sounds horribly tinny and is unusable for voice recordings. Battery life seems to be improved over LOS 16.
[Galaxy Tab S2 Android Development] Kobazz:
Wow, i'm impressed with this rom on my T810. How fluid is is and all. Nearly perfect on this old beast. Besides the Netlix issue that the devs cannot do anything about and the known quirky fingerprint scanner issue, I also appear to have an issue with voice search commands in chrome and play store. When I hit the mic button I get error no internet connection. Tried moest of the obvious things to get it working, but no go. Anyone else with the same issue and perhaps with a solution?

Thanks a ton.
[Galaxy Tab S2 Android Development] nabla²:
Sorry for the noise, apparently, this is a general Lineage OS issue.
[Galaxy Tab S2 Android Development] rabbitkiller:
Hello

For the battery drain I root with magisk and install naptime

It's perfect!

I hope this will help someone else

Rabbit
[Galaxy Tab S2 Android Development] Kobazz:
Solved by reading another thread. Open gapps Google App seems to not work properly with voice search. Just head over to apk mirror or whatever apk site and download the Google app. I have installed the latest beta version and it works like a charm.
[Galaxy Tab S2 Android Development] Gunteer:
Installed lineage-17.1-20210221-UNOFFICIAL-gts210wifi and bought an original Samsung cover in Hungary - it is as if I got a whole new tablet. Runs very smooth and looks new.

Q: Will this version - see above - autoupdate or is there a workaround?
[Galaxy Tab S2 Android Development] Surfer_II:
Flash & boot of lineage-17.1-20210308-UNOFFICIAL on T810 & T815 works fine and without problems.

T810: Wifi issue (does not reconnect automatically after boot, loosing Wifi connection frequently) is still present as well as random reboots after wake up from longer stand-by phases.

Surprisingly, Root via Magisk was gone after the first boot. Had to reflash Magisk.zip via TWRP to get the device rooted again.

Update to latest Magisk version via Magisk App worked fine afterwards.

T815: so far only WIFi issue (does not reconnect automatically after boot), otherwise rock stable.

Thanks @ripee for your great support !!
[Galaxy Tab S2 Android Development] Schaagi:
I have installed the 17.1 image from March 08 21 on my T810. As Surfer_II already wrote, there is a

WIFI problem (sometime it loses the connection), then you can disconnect WIFI and connect again -

sometimes you need to reboot the tablet.

When the tablet is in standby mode, the battery is suddenly empty (0%), which I have never had before.

As I use my tablet daily, I have to go back to 16.0.

Regards

Schaagi
[Galaxy Tab S2 Android Development] ArtoD2:
Using the latest Remix and this naptime works perfectly.
[Galaxy Tab S2 Android Development] JoshReuben:
Clean install to lineage-17.1-20210308-UNOFFICIAL (upgrading from the January lineage 16 build) on gts28wifi and same experience with Magisk needing to be reapplied, sleep issue and wifi disconnect issue. Relfashing magisk and installing naptime resolved the first two, though battery drain still seems a little worse than on lineage16, and the wifi disconnect issue remains.

Thanks for everything you do. My beloved Tab s2 is still my wife's daily driver thanks to your hard work.
[Galaxy Tab S2 Android Development] Adler12:
SM-T815 says thank you for this absolutely great work. My tablet would have been retired a long time ago otherwise.
[Galaxy Tab S2 Android Development] zed011:
Hope one day we have another 8 inch OLED tablet, otherwise I will hang on to this forever. It's still a great tablet
[Galaxy Tab S2 Android Development] JoshReuben:
Has anyone had any luck with the wifi disconnects in the latest 17.1 build?
[Galaxy Tab S2 Android Development] numbfall:
Hey, I have gts28wifi as well (SM-T710). The latest build is working perfectly fine for me. No wifi or battery drain issues. I don't use/install magisk. I have been doing dirty flashes since January though. Maybe start with an earlier build and overwrite with the new one? I can't think of any other reason why you have issues and I don't on the same device.
[Galaxy Tab S2 Android Development] Oeps:
Tried yesterday to dirty flash 17.1 over the 20201225 16.1 build to see if the Wifi/battery drain would be gone. After the upgrade it starts, I get the pin code screen. Enter pin and screen becomes black and I have to enter Pin again after pressing the power button (Pin is correct. If I try an incorrect pin I get the normal pin incorrect message). I did a clean cache after ugrading.

Tried it with and without flashing Gapps nano. Same result. Any hints?

I the last months I tried several times a clean install of 17.1. Some additional info on the battery drain to empty battery:

It seems that 17.1 randomly boots sometimes, It boots then in my case to twrp and twrp keeps the tablet on and drained the battery. Do not have a clue why it boots to TWRP. Does not happen with 16.1.

Anyone another recipe to get a stable 17.1 (gts28wifi on SM-T710)? Happy to try as 17.1 felt much smoother!

I use twrp 3.5.0_9-0. I do not use/installed magisk.

Anyhow still a happy camper with this Ripee build as it keeps this wonderfull S2 alive for so long! Thanks

Thanks!
[Galaxy Tab S2 Android Development] numbfall:
@Oeps

I (and others) had the same issue of black screen after entering pin with that build. Start with a January build. 20210116 is the earliest on ripee's drive
[Galaxy Tab S2 Android Development] JoshReuben:
I really appreciate your reporting back after you give it a try. I'm in the same boat as you with the most recent build, but no time to tinker with it.
[Galaxy Tab S2 Android Development] ppc-mania:
I'll tell you my experience with Sm-t815 lte. I switched from stock to Resurrection Remix Android 10. everything seems to be working fine. i make a backup to try los 17 but i have wifi problems . Then i try aosp but i have wifi problems. i try havoc but i have wifi problems. back to backup rr which worked but this time i still have wifi problems. I try to install various versions but none of the wifi works for me. I decide to try los 16 and finally everything seems ok
[Galaxy Tab S2 Android Development] powerbyandroid:
Installed this rom few days ago, so far it's great, don't have any problem. However, I notice when I playing COC and Hayday, battery draining very fast and tablet getting heat, does anyone has this problem or this IS just normal?
[Galaxy Tab S2 Android Development] Oeps:
I did give it a try. Semi long post below.

Maybe this post helps others to install Android 10 in a stable way on a SM-T710. My previous experience with direct clean install of LOS 17.1 was Wifi disconnects and random reboots to TWRP.

1st try (no success):

Clean install 16.0 20210109, Gapps Android 9 Nano, reboot.

Configure gmail account, did not restore apps. Configue Pin+fingerprint, disabled trust alerts, enabled developer options advanced restart to support me being lazy :-).

Reboot (just to be sure).

Reboot to TWRP.

Install 17.1 20210309, Gapps Android 10 Nano.

Reboot: cannot come passed the PIN screen.

2nd try (success):

Clean install 16.0 20210109, Gapps Android 10 Nano, reboot.

Configure gmail account, do not restore apps. Do NOT Configure Fingerprint+PIN, disabled trust alerts, enabled developer options advanced restart.

In my case Android complained that my organisation needs to have a pin (can't start any app now, they are killed after a few secs). I have my own domain coupled to the once free G Suite. No worry for now as LOS 17.1 will be installed in a minute.

Reboot (just to be sure).

Reboot to TWRP.

Install 17.1 20210309, Gapps Android 10 Nano.

Reboot, Swipe starts the Android 10 desktop!

Deal with the account alert and set Fingerprint+PIN

Finish Google Play updates.

Reboot, with fingers crossed.

Enter PIN, Android Desktop starts!

Start "Finish setup notification" and choose cloud backup to restore my apps (WiFi disconnected once, WiFi Off/On and I could continue restoring).

Configuration Voice search came in some kind of loop while restoring the apps (I do not wanted Voice search). Ignored the messages to let the restore continue.

Even after a reboot the Voice search kept nagging. I just configured it.

Happy camper!

Conclusion:

Keeping my fingers crossed definitely helped completely booting Android 10 🤪 !

During the manual configuration of all my apps no WiFi issues. So far so good.

Coming days hopefully no unexpected reboots.

Question: My S2 does not switch off anymore now after closing flip cover (It does wake up when opening the cover). It worked in Los 16. Did not find the setting for this. Is it implemented in Los 17.1? It used to be in the Accessories or connected devices menu entry in older versions. Not really a big deal but very nice to have.

Thanks!
[Galaxy Tab S2 Android Development] dcaffeine8d:
Installed this ROM today. I noticed that Widevine shows Security is L3. When I installed Havoc OS, it shows Widevine L1. Are they both not based on Lineage?
[Galaxy Tab S2 Android Development] bmwdroid:
TIL that Havoc is not based on LOS.

But dunno if it's true.
[Galaxy Tab S2 Android Development] lpedia:
From item 1 in [ROM][11.0] Havoc-OS 4.2 [UNOFFICIAL] [2021-02-25] ... "Havoc-OS 4.x is based on AOSP, inspired by Google Pixel."
[Galaxy Tab S2 Android Development] dcaffeine8d:
Never mind. I reverted to Havoc OS just to check widevine and it's also L3. When I first installed this, I just did a dirty flash from the original Nougat ROM from Samsung and I think that's when I saw widevine was L1. This time, I did a full wipe and it's now showing L3. I'll try to restore a nandroid backup to see if I wasn't seeing the wrong thing.
[Galaxy Tab S2 Android Development] Abdulrouf:
M on T815

---------- Post added at 08:33 PM ---------- Previous post was at 08:29 PM ----------

This one is pretty much stable though for me on T-815 though

however there are three bugs i found and you ca read about them in above comments .....!

i.e wifi issue in aeroplane mode etc
[Galaxy Tab S2 Android Development] metterschling:
Interestingly WiFi works in airplane mode for the T715 build variant, I use it regularly to save some battery life.
[Galaxy Tab S2 Android Development] thefunkygibbon:
ok so i realize that I cannot see the internal memory from within TWRP because it has encrypted my storage. but is there any way around this? I copied all of the files off, formatted from within TWRP and put the files back on again, re-setup Lineage and when i went back into TWRP it was the exact same situation (read multiple places saying formatting "sorts" the problem out, clearly doesn't).

Is there anything to do other than, presumably not setting up the tablet with any kind of password/fingerprints so that it doesn't encrypt?? Using 3.2.3.0 of TWRP and I read that it should in theory prompt you for a decrypt password from within that (it doesn't) and it also fails when running the terminal command twrp decrypt <password> (after i set the lock screen to use a pin or a password.)

what do you all do?
[Galaxy Tab S2 Android Development] sal82:
For those who are wondering, battery life is phenomenal!

I've watched 30 minute YouTube videos with only 4% drainage! Compared to the official 14.1, it's quite laughable how much better battery life is on this ROM.
[Galaxy Tab S2 Android Development] marcelo_fern:
Hi, what model is your tablet? are you using power saving mode? mine is a t710 and is not near that performance :crying:

---------- Post added at 07:18 PM ---------- Previous post was at 07:15 PM ----------

Thanks to the author of this ROM, so far everything is working (T710 clean installation). Only thing that I've found is the fingerprint reader problem, hope a fix is implemented soon (need to keep testing battery). Great work!
[Galaxy Tab S2 Android Development] ripee:
Changelog

Build 0121 for all variants

* One very minor adjustment to the SD card to bring it in line with official sources. This may help with formatting it as adoptable.

* Synced with LineageOS sources.
[Galaxy Tab S2 Android Development] sal82:
Mine is the T810 model.
[Galaxy Tab S2 Android Development] marcelo_fern:
I also found that after restarting the device it turns off power saving mode also when it's charging power saving mode will be turned off, even if I turned it on. Is this the default for lineage? I have a galaxy s8 and it doesn't work this way (stock firmware).
[Galaxy Tab S2 Android Development] chigo58:
Agreed. 5 days 5hrs and 19% battery left since last charge. Would be great to have fingerprint reader issue working tho. Excellent ROM.