yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Android Development] dynobear:
Please help with installation of Magisk... I've searched the entire evening, but are still unsure, and frankly also a bit worried... Is https://topjohnwu.github.io/Magisk/install.html#instructions really what I have to do after having installed LOS 18.1 (v 20211103) on my gts210wifi ?
[Galaxy Tab S2 Android Development] lpedia:
That link is to the "Instructions" within the "Samsung (System-as-root)" section. Note the warning at the top of that section: "If your Samsung device is NOT launched with Android 9.0 or higher, you are reading the wrong section". The 2015 Tab S2 devices were certainly not launched with Android 9 or above.

Use either the general Patching Images instructions or the Custom Recovery instructions on that site. I have successfully installed Magisk on a T710 with LOS 17.1 and 18.1 with both methods.

Try the "Custom Recovery" method first, as it's the simplest.

If that doesn't root the device successfully, use the "Patching Images" instructions. In summary: extract the boot.img file from the LOS ROM zipfile you're using, patch that with the Magisk app, boot to TWRP and flash the patched image to the boot partition, then reboot system.
[Galaxy Tab S2 Android Development] dynobear:
Thank you @lpedia and all the others for your kind help, and please apologize if my questions seem so basic.

How can I be sure it worked ? I didn't encounter any errors when following your direction "in summary", but when I run "Check SafetyNet", the attestation failed with basicIntegrity and ctsProfile equals "(-)" and evalType equals BASIC. If the installation worked, what do I need to do next?
[Galaxy Tab S2 Android Development] lpedia:
In the Magisk app, above the "check safetynet", there are two sections: "Magisk" and "App". "App" is about the app itself. In the "Magisk" section, if there's a version number next to "Installed", the device has been successfully rooted. Example below (screenshot was not taken from a Tab S2, but it should look similar).

View attachment 5519211

To make the device pass SafetyNet once it's been rooted, you will need to turn on MagiskHide (in Magisk app Settings). It might be necessary to do other things as well, but try that first. If it doesn't pass immediately after you change the setting, try the test again.
[Galaxy Tab S2 Android Development] dynobear:
Thank you @lpedia ! Here is what I ended up doing, hoping for some confirmation or correction...

From TWRP

Clean Flash of ROM and GAPPS, following the instructions at the beginning of thi Thread.

Flash Magisk.apk (I didn't know one could flash an apk file from TWRP)

Boot and run through the setup

Install Magisk.apk, open it, follow the prompt for restart

Turn on MagiskHide from the App Settings

This resulted in SafetyNet sucessfully passing

Anything I missed or did wrong ?
[Galaxy Tab S2 Android Development] dcaffeine8d:
All the ones disabled by default.
[Galaxy Tab S2 Android Development] lpedia:
Sounds like you did all the right things. (y)
[Galaxy Tab S2 Android Development] dynobear:
Still, a number of Apps I was able to install before on this SM-T810 continue to show "not available for device", over several different categories :(

For example: "AirEurope" (aviation company), "Mi Fit" (fitness tracker), "Samsung Health" (smart watch), "Revolut" (banking app)

Any ideas / pointers where I should go next?
[Galaxy Tab S2 Android Development] aboulafia1901:
Hello ,

With gts210ltexx ,i use custom recovery method (twrp) with zip file explained in your link .
[Galaxy Tab S2 Android Development] lpedia:
I don't have any specific advice about those apps, because I don't use anything similar. Others on this thread might know more, though.

Developers sometimes mark an app as not suitable for tablets simply because they haven't tested it or there are some things that are known not to work properly on tablets. An app might also appear not suitable because it lists as 'required' one or more permissions that aren't relevant to tablets. Such permissions might not be strictly necessary for the app to work.

So ... you could try installing the apps anyway. I've used a few such apps on the T710 with either no or only minor problems (eg not displaying correctly in landscape mode).
[Galaxy Tab S2 Android Development] dynobear:
Ok thank you, I get it.

I will search for "Revolut", and the other apps may fall into that category you explained. Thanks again
[Galaxy Tab S2 Android Development] dynobear:
Confirming lineage-18.1-20211103-UNOFFICIAL-gts210wifi working fine on my SM-T810 as well for a few days now. Thanks again.

Only one issue: SELinux Disabled (reported by Android System Trust). Is it possible to fix it? I searched the this topic, but couldn't find a solution.
[Galaxy Tab S2 Android Development] lpedia:
(y)

You should expect this with most 'unofficial' LineageOS builds, because they are 'works in progress' (and usually produced and supported by devs who don't have a lot of spare time to work on them).

Configuring SELinux policies is complicated and time-consuming, and if policy breaches are being enforced it would be much more difficult to identify and fix other errors in a build under development. With SELinux set to Permissive, actions that would have been policy breaches are allowed, but logged, so (in principle) policies can be progressively defined and debugged without breaking anything else.

If you're interested, Working with SELinux on Android | lineageos.org and Validating SELinux | source.android.com explain some of what's involved.
[Galaxy Tab S2 Android Development] dynobear:
Thank you so much for taking the time to explain so well. Really helps!
[Galaxy Tab S2 Android Development] dynobear:
Regarding the WiFi issues in the latests builds, I found the above post from last year and was wondering if something similar could be the issue. Of course I'm lacking the experience to test this out, but I thought maybe it could help... but probably @ripee did already check that anyways, so feel free to ignore.
[Galaxy Tab S2 Android Development] schnoeselmeier:
I installed LOS18 today. Everything seems to work fine except for the known microphone issue. Also I didn't pass safety net. There is no more Magisk Hide. Can someone please advise what to do?
[Galaxy Tab S2 Android Development] NineteenHeif:
@bmwdroid , could I please get a link to the 1103 build also? Thanks!
[Galaxy Tab S2 Android Development] bmwdroid:
Should be there right now.
[Galaxy Tab S2 Android Development] halloarno:
If you have rooted with Magsik and not updated to the latest Magisk (magisk hide is removed from latest version), enable magisk hide for the apps, clear data for the app, google playstore (and not sure if needed, but cant hurt: clear data for google playservices).

Reboot

I have Revolut running with succes.
[Galaxy Tab S2 Android Development] TimDawgz:
I would suggest trying BiTGapps instead of OpenGapps.

I didn't spend much time trying to troubleshoot my OpenGapps install, but I had issues with GPS not working, several apps not showing up in the Play Store or showing up as incompatible or showing up but would fail during installation.

After switching over the BiTGapps, those issues were solved, without installing Magisk. I was even able to install Netflix directly from the Play Store, which I think is pretty much understood to be an APK install under OpenGapps.
[Galaxy Tab S2 Android Development] tamjan:
Is there a recent ROM for the gts210ltexx that has SIM support and is downloadable? Thanks.
[Galaxy Tab S2 Android Development] bmwdroid:
Link in post 1 not recent enough?
[Galaxy Tab S2 Android Development] tamjan:
I tried the most recent one there, but the sim-card doesn't work. According to this thread, I'm not the only one experiencing this problem.
[Galaxy Tab S2 Android Development] bmwdroid:
Now I understand what you were trying to ask.
[Galaxy Tab S2 Android Development] dynobear:
Thanks @TimDawgz for the suggestion. Changing to BiTGapps didn't work for me however, it resulted in the same.

However, I was able to find a solution by 1) flashing ROM and OpenGapps, 2) run through initial setup, go back to Recovery, 3) install Magisk from TWRP, 4) install the safety net fix module, 5) clear cache and data for Google Play Store and Services.

Hope this may help others as well.
[Galaxy Tab S2 Android Development] dynobear:
For me, this was the solution https://xdaforums.com/t/magisk-module-universal-safetynet-fix-1-1-0.4217823/
[Galaxy Tab S2 Android Development] dynobear:
Is that (fixing the WiFi settings) something that could be done with Magisk? I'd like to try, but would need a bit more detailed instructions to be able to follow
[Galaxy Tab S2 Android Development] aboulafia1901:
Hello ,

With magisk 24, I install the modules Safetynet fix 2.2.1 zygisk, shamiko and magiskhide props. it works completely under AOSP extended (android 10). under lineage it works except netflix. currently, I am looking for a solution.
[Galaxy Tab S2 Android Development] InstandRadio:
Hi there, First of all, many thanks to @ripee and to everyone else who keeps the Tab S2 alive :). Absolutely amazing!!! I hope I don't get stoned for asking a question. Will there be more updates coming in the future? I'm so surprised that suddenly there aren't any more, which I find very unusual.

Thanks :)
[Galaxy Tab S2 Android Development] thesandro:
Hey @bmwdroid could you hook me up with a link to the 20211103 build as well?
[Galaxy Tab S2 Android Development] bmwdroid:
Yeah mate. Could and did.
[Galaxy Tab S2 Android Development] tom65824:
How can i install modules in the new masgisk 24? I need a repository? I donloaded the safetynet.ZIP...but cant install it With magisk. Thanks in advance
[Galaxy Tab S2 Android Development] aboulafia1901:
hello : safetynetfix for zygisk here : https://github.com/kdrag0n/safetynet-fix/releases

Shamiko : https://t.me/magiskalpha/388

Magiskhide props : https://github.com/Magisk-Modules-Repo/MagiskHidePropsConf

in modules you must choice local install .I check zygisk after modules install and check google services and playstore in deny .But with Lineage I haven't found the solution yet for Netflix .
[Galaxy Tab S2 Android Development] dynobear:
Did you also clear cache for Play Store and Play Services after installing Magisk, Zygisk and SafetyNetFix? That helped me with various apps.
[Galaxy Tab S2 Android Development] aboulafia1901:
Yes ,i forgot to say .I clear cache and data for playstore .Play services no ,but perhaps it's better . (I will try to test Netflix :) )
[Galaxy Tab S2 Android Development] zoren:
Hey @metterschling could you share with me the link to the 202108 build for T715? I seem to be facing the WiFi issue. TIA
[Galaxy Tab S2 Android Development] metterschling:
Hey @zoren - sure, just did so.

I'm using 17.1 20210825 build as daily driver for some months now, quite stable except from MTP and ADB not working and notifications getting entirely suppressed after activating "do not disturb" mode.
[Galaxy Tab S2 Android Development] zoren:
@metterschling thanks for the prompt share! Much appreciated. no more WiFi issues so far!
[Galaxy Tab S2 Android Development] shutdown-h_now:
Hello @bmwdroid:

Could you please also provide me with a link to the LOS 18.1 20211103 build for gts210ltexx? "Like" is granted ;-)
[Galaxy Tab S2 Android Development] bmwdroid:
Sorry mate.

Owning a T810 I only kept its ROM.
[Galaxy Tab S2 Android Development] tensux:
nevermind, got it
[Galaxy Tab S2 Android Development] tom65824:
:-) may i have also a link for that, tensux ?
[Galaxy Tab S2 Android Development] parkersweb:
I don't suppose anyone has a copy of that older build for gts28ltexx do they? It's for a T715C...

Thanks!
[Galaxy Tab S2 Android Development] tensux:
I used the link in the OP. I had trouble installing then solved it.
[Galaxy Tab S2 Android Development] tom65824:
first thank you that you keep this piece of technology still up to date - Thank you very much

just a pity, in the current state it makes no sense to use the tablet

in standby-mode it empty in 1.5 days - Wlan must always be reactivated

(with 17.1 lasted about -6 Days )

hope for the next version
[Galaxy Tab S2 Android Development] andrej4711:
Dear @bmwdroid could you give me a link to the 20211103 gts210wifi build? Thanks in advance!
[Galaxy Tab S2 Android Development] andrej4711:
My experiences with build 20211208 gts210wifi are pretty mixed (coming from LOS16.0-20201225). Flashed 3 times

TWRP 3.5.2

lineage-18.1-20211208-UNOFFICIAL-gts210wifi.zip

open_gapps-arm-11.0-pico-20220126.zip

Magisk-v20.3

(clean flash with full reformat) with following testing for about a week after each flash.

After each fresh re-flash tablet worked very stable for few (2-3) days, after that ongoing degradation of wifi stability observed (tested on different wifi networks with 2.4 and 5 GHz). Maybe it is not the period of time but rather number of reboots, indeed.

Chrome and Edge do not work properly - hanging up shortly after the start. Built-in browser and Opera work stable. I guess due Chrome and Edge being based on chromium engine...

SystemUI process crashes if opening from status line on the top (wifi or bluetooth icons), starting "Setttings" as an app works, though.

Maybe (2) and (3) are caused by gapps version...

Two positive points are fluency AND button LEDs work as expected (have not seen them shining for years:)).
[Galaxy Tab S2 Android Development] bmwdroid:
Should have got PM by now
[Galaxy Tab S2 Android Development] eliasgsc:
It worked for me, but I don't have mobile data. I can't make phone calls either.
[Galaxy Tab S2 Android Development] idnn:
Dear @bmwdroid I would like to have the link to the 20211103 gts210wif (T810). I installed the latest 20211208 but do not want to go back to the LOS 17 I have saved myself.

Thanks in advance!
[Galaxy Tab S2 Android Development] bmwdroid:
You've got mail
[Galaxy Tab S2 Android Development] parkersweb:
I've installed both: the 20211128 and 20211209 builds of gts28ltexx onto a T715C but in both cases I'm not able to get the wifi working - it'll occasionally connect after a fresh boot, but it'll fail after a few minutes. The rest of the time the wifi hotspot is listed as "saved" - but fails to connect.

I've reduced the install to just the lineage flash through TWRP (i.e. no OpenGApps - and I've not tried Magisk at all) - but no luck. Anyone else know what else I can try? I'm even happy to go back to Lineage 17 if that makes it more stable - but can't find a build to try for that.

Thanks all!
[Galaxy Tab S2 Android Development] dantibes:
hello I wanted to know if there is a rom for the SM-T819: gts210velte
[Galaxy Tab S2 Android Development] metterschling:
Hi @parkersweb the last LOS 17.1 build might indeed provide a better experience. Other SM-T 715 users reported that WiFi issues don't occur with that one. Please check your PM for a link.
[Galaxy Tab S2 Android Development] metterschling:
The 819 is a completely different device, so wrong thread here. There is a separate LOS 17.1 thread for T819, you might ask there. And please do not re-post OP as this is giving other users a bad forum reading experience.
[Galaxy Tab S2 Android Development] parkersweb:
Just to follow up on this message from @dynobear - I've actually just tried copying the S2 wifi blobs over into the latest build of LineageOS 18 on my gts2ltexx (T715C) - and immediate impressions are good. Previous to this my tablet would rarely connect to the wifi on first boot - in the wifi settings I could see my router (and the status is "saved"), but when I tried to connect I would get a "failed to connect" message the majority of the time.

After copying over the S2 wifi blobs as per this post:

https://xdaforums.com/t/troubleshoo...rs-running-any-version-of-android-10.4308193/

it connected to the router first time for 5 full reboots in a row. I'm going to leave it running for a day or two now to see if that solves the problem permanently - but looking good so far!
[Galaxy Tab S2 Android Development] mastersurferde:
Hi @metterschling,

please could you also send me the link for the last LOS 17.1 for the SM-T715 (gts28ltexx). The actual version has to much battery drop and a very bas wifi.

Thank you and best regards,

Stefan
[Galaxy Tab S2 Android Development] metterschling:
Sure, please check your PM.
[Galaxy Tab S2 Android Development] parkersweb:
Just to add to my previous message - the wifi connection has been generally very stable over the last two days. So copying over the S2 wifi blobs into my Lineage 18 install seems to have solved the problem in my case.

It might be just my imagination - but I also feel like the battery performance has been better too - so I'm wondering if the two were related?
[Galaxy Tab S2 Android Development] lpedia:
If wifi issues were preventing the device from going into and/or staying in deep sleep, then yes - fixing the wifi should improve battery performance.

There's a handy app called DevCheck that can tell you how much of the device's time is spent in deep sleep - along with a lot of other system information.
[Galaxy Tab S2 Android Development] aarem:
Hello, is there any possibility of getting a 18.1 build for gts28vewifi (SM-T813)?
[Galaxy Tab S2 Android Development] parkersweb:
Thanks @lpedia - I’ll check that app out.
[Galaxy Tab S2 Android Development] madindehead:
Just wondering how people installed Magisk on this ROM?

I have a ramdisk on my device (SM-T815), but using Frida, the latest ROM is only Android 7.0, so not sure I can use the ramdisk method for Samsnung as described on the Magisk page (https://topjohnwu.github.io/Magisk/install.html#samsung-system-as-root)
[Galaxy Tab S2 Android Development] lpedia:
I think the Samsung-specific instructions are meant for devices that still have stock Samsung ROMs

and

were launched with Android 9 or above. Trust the advice "If your Samsung device is NOT launched with Android 9.0 or higher, you are reading the wrong section." ;)

Magisk on my T710 also reports Ramdisk: yes. Both the boot image patching method and flashing the Magisk zip from TWRP recovery worked for Magisk v23 on this device with LOS 18.1 (which has been through many wipes and clean flashes!). The Magisk app recently updated itself to v24.1, and I just had to redo the boot image patching to have it rooted again . I think the boot image patch method would certainly work if you're starting with v24.1, and it is quite simple to do.
[Galaxy Tab S2 Android Development] madindehead:
I totally missed that bit! Oops.

Thanks for the clarification.
[Galaxy Tab S2 Android Development] Aster00:
Los 18.1 have so much batterdy drain .Can i have a link for los 17.1 T715? Thnx
[Galaxy Tab S2 Android Development] Aster00:
Can i the link ?
[Galaxy Tab S2 Android Development] metterschling:
Sure, message sent.
[Galaxy Tab S2 Android Development] Aster00:
Thnx
[Galaxy Tab S2 Android Development] dynobear:
Hi @parkersweb , I'd be interested in testing that out as well, since it'd give me later security updates. Could you provide a link or steps on how one could do that "copy over the blob". ?
[Galaxy Tab S2 Android Development] lpedia:
See @retiredtab's thread - link given in parkersweb's earlier post - for detailed instructions.
[Galaxy Tab S2 Android Development] parkersweb:
@dynobear - yep, as @lpedia said - I was following the instructions in that link. It relies on having an adb shell to the device and git installed on your PC/Mac. if you don't have git installed you can download the zip from Github (this one is the correct one I think) - but I used the method as they described it.

It seems to have worked really well for me - but wondering if that's something that could be incorporated into the official build at some point?
[Galaxy Tab S2 Android Development] JulKenVN:
T815y have completed the installation, but the device does not recognize the sim or the mobile network is not available.View attachment 5570727
[Galaxy Tab S2 Android Development] dynobear:
Me too, I successfully followed these instructions to replace the WiFi blob, and it seems successfully working so far for my gts210wifi as well.
[Galaxy Tab S2 Android Development] xbt-:
Any news if/when T713 may be supported?

By the way I looked it up, and these are the differences:

Therefore, T713 is the 2016 Snapdragon 652 Wifi-only model. The reason why it seems that T713 is not included, is because all the listed models are all Exynos models: [T710][T715][T715Y][T810][T815][T815Y]. All end with a 0 or 5. So, we would need a developer to make this for the snapdragon variant (models ending in 3 or 9).

How hard is this to do?

I could see using this tablet for years in the future, because I don't have hope that a better tablet this size with OLED and this lightweight will come to market anytime in the near future, and none others exist.
[Galaxy Tab S2 Android Development] lpedia:
Well, the place to start would be to look at what's involved in upgrading the LOS 17.1 build for the 2016 S2s to LOS 18.1. The 17.1 thread is https://xdaforums.com/t/rom-unofficial-10-lineageos-17-1-t713-t719-t813-t819.4070161/. So far, no one seems to have shown interest in building an 18.1 ROM for the 2016 S2s, but it would probably be easier to upgrade that code to 18.1 than to adapt this ROM to include the Snapdragon devices.
[Galaxy Tab S2 Android Development] fendros86:
smt815y

i have done instaled this rom

but my sim card not detect

cz my imei is lost n forgot to backup.

so i repair my imei with z3x but cannot done

coz need cert,efs & nvdata file

i search that on google n get nothing

anyone can help me for cert,efs file??

🥲🥲🥲🙏🙏🙏🙏
[Galaxy Tab S2 Android Development] bmwdroid:
Can't help with that file but I read it sometimes helps flashing multiple! part stock rom.

Tried that already?
[Galaxy Tab S2 Android Development] dynobear:
Having issues with browsers like Chrome and Egde hanging on my gts210wifi as well with 20211208 build. Using the same OpenGApps on an older build (like the 20211103) works just fine.

Any suggestions on which is the least old build that works fine with this, now that Wi-Fi can be fixed by using the 16.0 stock drivers ?

I'm interested in as new as possible security patches.
[Galaxy Tab S2 Android Development] andrej4711:
I can confirm - combination

lineage-18.1-20211103-UNOFFICIAL_gts210wifi.zip

open_gapps-arm-11.0-pico-20220215.zip

shows no wifi issues (neither for chrome/edge) after intensive testing for 2 weeks. Bottom button's LEDs work as well.

Drawbacks:

battery drain notable higher compared with LOS16, but not dramatically higher - I'd say 20-30%

missing security patches from last months
[Galaxy Tab S2 Android Development] sik73:
Dear @bmwdroid could you provide me the link to the 20211103 build for T810 as well?

Thank hou very much.
[Galaxy Tab S2 Android Development] J.Bravo:
Sadly i'm too unable to get the lastest build(20211208) to work on a t810 with magisk23.0/24.3 i.c.w. multiple streaming providers(ziggo/Disney+/netflix).

Love to try the 1103 build before ging back to LOS17.1, could you provide me a link @bmwdroid?

T.i.a.!

And a hudge thanks for all the people who put effort in building custom roms!!
[Galaxy Tab S2 Android Development] bmwdroid:
I've sent you an invitation ;)

Never tried paid streaming on it.
[Galaxy Tab S2 Android Development] aboulafia1901:
Hello ,

If it may helps .his works on my Sm-T815 ,build 20211103 ,for netflix :

Magisk 24.3

Universal Safety Net Fix module+ MagiskHide props module

in deny list check Google play store (all check) + Google Play Services (all check)

Do'nt force exclusion

Hide Magisk app

Don't use Shamiko module

wipe data and cache of Google Playstore in settings .

the manipulation requires several reboot.

This does not work for build 20211209
[Galaxy Tab S2 Android Development] rey aditya:
What mean multiple part ??
[Galaxy Tab S2 Android Development] rey aditya:
@ripee

Can you help me

My sm-t815y lost imei

I need nv_data.bin i think on efs folder

Can you sent to me please
[Galaxy Tab S2 Android Development] rey aditya:
You still have your t815y n rooted ???

I need help
[Galaxy Tab S2 Android Development] J.Bravo:
Yes! 1103 works on T810 with netflix, Disney+ etc.

No need to hide/rename the magiskmanager app so far.

Thx!
[Galaxy Tab S2 Android Development] aboulafia1901:
happy for you. with pleasure .:)