yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Original Android Development] Krystanos:
To be more clear: it's not the same chip (T-710 is Exynos, T-713 is Snapdragon).

At best, you won't be able to flash the ROM. At worst, you'll brick it.

I don't thinkg you will have a better answer as nobody wants to brick his tablet that much. :p

---------- Post added at 11:43 AM ---------- Previous post was at 11:42 AM ----------

To be more clear: it's not the same chip (T-710 is Exynos, T-713 is Snapdragon).

At best, you won't be able to flash the ROM. At worst, you'll brick it.

I don't thinkg you will have a better answer as nobody wants to brick his tablet that much. :p

---------- Post added at 11:43 AM ---------- Previous post was at 11:43 AM ----------

To be more clear: it's not the same chip (T-710 is Exynos, T-713 is Snapdragon).

At best, you won't be able to flash the ROM. At worst, you'll brick it.

I don't thinkg you will have a better answer as nobody wants to brick his tablet that much. :p
[Galaxy Tab S2 Original Android Development] paulr24:
I just tried OTA updating from I believe the 4/10(ish) build to the 4/30 build and when it rebooted it took me to what looks like a Lineage OS Recovery screen that I hadn't seen before. It just hangs on that screen though and the update doesn't complete. I tried tapping "apply update" and then "choose from emulated" but it brings be to a screen with the android guy and the ! mark and a whole bunch of errors. Do I need to flash TWRP back or ? I can totally just try that but apparently this Lineage recovery was flashed without my knowledge at some point so I'm just trying to figure out the correct procedure going forward.
[Galaxy Tab S2 Original Android Development] nostupidthing:
Sorry is fingerprint reader working in this ROM?
[Galaxy Tab S2 Original Android Development] LuK1337:
Yes, it's working as bad as on stock ^.^
[Galaxy Tab S2 Original Android Development] Plauges:
Has anyone had issues installing apps? It doesn't seem to be all the apps, some examples of the apps I have had issues with are below. Mostly not a big deal, just wasn't sure if it was something specific to my set up.

Google Chrome

Microsoft Office apps (word, excel, etc.)

I have tried multiple options within Open GApps (nano, pico, super, stock), I also tried Mind the Gapps. Same issues all around.
[Galaxy Tab S2 Original Android Development] Lupin The Third:
In my experience, FP is very accurate on stock, it works very well.

Edit: Oops, sorry! This is t713 thread. I have a t813. Sorry!
[Galaxy Tab S2 Original Android Development] Obecny:
Is there any archive or mirror so I can still download Lineage 14 ?

There is only 15.1 available now and it has a compass bug so is not working with dji go 4
[Galaxy Tab S2 Original Android Development] LuK1337:
I replied to your email about the compass bug.
[Galaxy Tab S2 Original Android Development] rionline:
Dear Luk1337, i own the t719. Are there any plans from your side to support this device? If not, could I run your ROM for 713? Would only be cellular broken? I hope I did not miss any information about this issue. If so, I am sorry for bothering.

Greetings from germany

Update: So there is a build, which has issues with audio. Silly me. Sorry for bothering ;)
[Galaxy Tab S2 Original Android Development] pointbob:
Hi. Compass bug for dji on Samsung S2 sm-t713? I read your post...has this been fixed. My 713 is still unrooted and wondering if the root works...ie. fixes the connection problem. Thanks
[Galaxy Tab S2 Original Android Development] josdehaes:
Last update seems to have fixed the battery drain. The drain you see was with previous build. Have not used the device much during the last days. Before it was ok for a while while idle but then suddenly would no longer go to deep sleep.
[Galaxy Tab S2 Original Android Development] pointbob:
I'm getting error 7 when trying to install lineage zip..any tips? Help thanks
[Galaxy Tab S2 Original Android Development] winninh:
Hi. Hopefully, someone can help me out. I had Support King root my Samsung Galaxy Tab S2 8.0 SM-T713 today. However, we could not get LineageOS 15.1 to flash using Team Win. We downloaded the correct version, gts28vewifi, supposedly for this tablet. Any suggestions?

RESOLVED
[Galaxy Tab S2 Original Android Development] winninh:
WiFi disconnects and will not scan networks

Hi. I just had LineageOS 15.1 (lineage-15.1-20180528-nightly-gts28vewifi-signed) installed on my Samsung Galaxy Tab S2 8.0 SM-713 yesterday. So far, for the most part, I like it. It is very responsive, although I do not think it has appreciable improved battery life. The major problem I having is that the WiFi signal is dropped after a certain period of inactivity. When that has happened, the device scan networks but does not locate any. I have to reboot the device in order to restore WiFi functionality. Any help would be appreciated. On its own, this will be a "deal breaker." I'll have to end up restoring the Samsung firmware, which I'd really rather not do. Thank you.
[Galaxy Tab S2 Original Android Development] lmacmil:
I have the same problem with my stock S2 8.0 running Nougat. Doesn't happen very often but when it does, the symptoms are as you described. So I'm not sure it's totally a LineageOS 15.1 issue.
[Galaxy Tab S2 Original Android Development] Deltadroid:
Can you try setting gEnablePowerSaveOffload=1 in WCNSS_qcom_cfg.ini?

Edit:

Actually, you might want to edit the value for gEnablePowerSaveOffload in both configs

/firmware/wlan/qca_cld/WCNSS_qcom_cfg.ini

/etc/wifi/WCNSS_qcom_sdio_cfg.ini
[Galaxy Tab S2 Original Android Development] Vivi_foufou:
After updating to the last update the sounds and videos are stuttering on YouTube, plex, Spotify etc...

Any idea what should I do?
[Galaxy Tab S2 Original Android Development] atirage:
Could someone please tell me how's the battery life with this ROM? (with SoT, usage type, brightness level)
[Galaxy Tab S2 Original Android Development] RoterfuX:
Hey Guys,

my T713 arrived today and I wanted to flash LineageOS 15.1 but I guess I already broke it :\ I followed the official LineageOS guide (can't post links... /devices/gts28vewifi/install)and during the wipe in twrp I got a message

Could not mount /data and unable to find crypto footer
Failed to mount /data (Invalid argument)
Unable to recreate /data/media folder
...

It stays now at the Samsung logo and the data partition is empty...

Is there a way to fix this? Can I somehow restore the original firmware and start again? What did I do wrong?

Thanks guys!

Edit: oh I think that's correct, I need to decrypt the partition first and then TWRP will see the data partition... Found the information in the TWRP thread

Edit2: I had to do the following:

1. Boot into TWRP

2. Format data to remove the encryption

3. Mount device

4. Push lineageos and gapps via and to the device

5. Continue installation via guide
[Galaxy Tab S2 Original Android Development] messi2050:
Same question..
[Galaxy Tab S2 Original Android Development] schickel:
Missing OTG

Hi,

I've searched the thread and find nothing regarding OTG. It looks like it's not supported, my USB-Stick isn't recognized. The same stick works an my silly Nexus9 with LineageOS.

Any plans to include OTG?
[Galaxy Tab S2 Original Android Development] schickel:
Another thing:

Charging is very very slow and takes up to 6 hours. And no, I didn't have an old charger. It's the original Samsung 2A charger.

What could be the cause?
[Galaxy Tab S2 Original Android Development] winninh:
How exactly do I do that; where do I find gEnablePowerSaveOffload??
[Galaxy Tab S2 Original Android Development] LuK1337:
>Any plans to include OTG?

OTG works on my T813 ~ https://i.imgur.com/MHiLSww.jpg

>Charging is very very slow and takes up to 6 hours. And no, I didn't have an old charger. It's the original Samsung 2A charger.

It was always slow for me, I don't think we necessarily broke it considering we use unmodified Samsung driver.
[Galaxy Tab S2 Original Android Development] Deltadroid:
The wifi configuration file is located /system/vendor/firmware/wlan/qca_cld/WCNSS_qcom_cfg.ini (the other file I mentioned was unused and was removed in a recent commit).

If you have root explorer, you can open the ini file with the built in text editor to change the configuration option and reboot.

Edit: Oreo uses /vendor
[Galaxy Tab S2 Original Android Development] schickel:
There mus be something broken. Over night, in 8 hours in flightmode only 40% charched? This could defenitly not be the "normal" behavior.

I know with my crappy Nexus 9 it was the same issue, and USBHost find a fix and after this charging was "normal". Could it be, that the ROM/Kernel for some reason is slowing down/limiting the income power?

(btw, I've posted in the wrong thread - I have a 813, but reading all the threads I'm not the only one with this)
[Galaxy Tab S2 Original Android Development] heartog:
Does anyone having an issue with the Bluetooth battery indicator not showing correctly in the notification bar? It would show a vertical line next to the Bluetooth icon, similar to when battery is full white it is not. The pull down menu shows it fine with 50% battery left on my Bluetooth device.

Status bar: https://i.imgur.com/ZPnP4jG.png

Pulldown: https://i.imgur.com/TJo9CcK.png

Thanks.
[Galaxy Tab S2 Original Android Development] LuK1337:
I fixed that today.
[Galaxy Tab S2 Original Android Development] :
Hi. I implemented your workaround with Macrodroid but unfortunately in my case it doesn't seem to work. After a reboot the service goes normally in deep sleep but after a while (no charging!) it stops and instead it stays in the slowest active state. Wakelock Detector doesn't show anything strange, nothing really stands out but it won't sleep...
[Galaxy Tab S2 Original Android Development] :
Device doesn't go into "deep sleep"

Hi Guys.

I posted an answer to another message above but there was no reaction whatsoever. Is anyone else seeing that their tablet does not go into "deep sleep"? I tried the workaround suggested in this thread (i.e. turn WiFi off, restart the tablet, turn WiFi on, and create a macro that automatically turns WiFi off while the tablet is charging) but it does not help.

After a reboot things work as expected for maybe 2 or 3 hours, then the tablet stops sleeping. I haven't yet made precise measurements but I estimate that my battery then discharges at a rate of 4 - 5% per hour or even faster, if we consider the few hours of deep sleep.

Two days ago in an attempt to solve the problem I formatted system and data and did a clean install of the latest nightly. That didn't help either.

Any suggestion or idea is welcome. Thanks.
[Galaxy Tab S2 Original Android Development] schickel:
My suggestion:

Revert to stock. I've also massive battery drain in flightmode and this is a general problem for all omni rom and lineage based roms.

Over night my tablet drain 80% and really that is a killer feature to use this tab.

I'm back to stock, not happy with 7.0, but battery life is much better, also charging time. And for me this is the last Samsung device in my life after crappy S6 Edge experience.
[Galaxy Tab S2 Original Android Development] :
That's going to be the last resort. I really dislike Samsung's firmware. I bought this tablet because it's the only 7-8" tablet with official LOS support. I booted the stock firmware once, just to enable USB debugging.

I created a bug report in Jira. Now I'll wait a few weeks to see if there is some improvement.

Unfortunately I can't find custom kernels for the T713 because it would be interesting to try a different one.
[Galaxy Tab S2 Original Android Development] LuK1337:
Implying that opening up ticket on jira would do anything.
[Galaxy Tab S2 Original Android Development] schickel:
Your decision to buy this tablet is the same as mine. But I'm today done with Samsung at all. It's in ebay and in 7 days I'll give a big party.

Lessons I've learned: never buy a Samsung. Two times with two different devices nothing else as problems.
[Galaxy Tab S2 Original Android Development] :
Well, one can hope... However, based on past experience I'm not terribly optimistic.
[Galaxy Tab S2 Original Android Development] LuK1337:
Reporting on Jira is meant to get maintainer to notice certain issue and as you may know, I'm here like right now.
[Galaxy Tab S2 Original Android Development] :
I used to have a Nexus 7 (2013), then last week at the airport I forgot I had it in my back pocket and sat on it...

Apart from the battery drain issue, LOS runs very smoothly on the T713 and it's rock stable. I have it on my other devices as well, so that's no surprise. However this single problem is really aggravating. I often travel overseas for business, and many times I have no chance to top up the battery for several hours.

---------- Post added at 08:00 PM ---------- Previous post was at 07:38 PM ----------

Nice to meet you! ?

I am new to this specific thread so, no, I didn't notice until you pointed it out for me. Well then I can only hope that this problem has a high enough priority and that you have some time to look into it in the near future. If I can do anything to help, let me know.

Last but not least, thanks for your effort! As I wrote a few minutes ago, this ROM is really good. Stable and silky. The battery issue is a real pity.
[Galaxy Tab S2 Original Android Development] LuK1337:
I can't really do much about it as I have T813 which doesn't seem to have that issue. I pinged someone on our Slack to check this out but I don't promise anything.
[Galaxy Tab S2 Original Android Development] schickel:
I have the 813, accidently posted in 713 thread. But for is this issue solved, I'm out and Tab S2 is off waiting to sell
[Galaxy Tab S2 Original Android Development] LuK1337:
T813 sleeps pretty fine here tho ~ https://dl2.pushbulletusercontent.c...ot_Wakelock_Detector_Lite_20180617-211433.png
[Galaxy Tab S2 Original Android Development] schickel:
BetterBatteryStats told me also that I have deep sleep, but it isn't. As I told last night, tablet in flight mode, display off, drain from over 80% to 7%... Charging takes 12! hours to come to 90% and it stops charging. I hope you understand my problem, draining fast, never get tablet full charged. In this state it is totally unusable.
[Galaxy Tab S2 Original Android Development] lmacmil:
I have had no issues with my T713 (bought new.) I use it mainly as a book reader, web surfer and reading the newspaper. I don't have to interact with the ROM much so stock Nougat work is fine for me. I'd flash this ROM in a second but for this battery drain issue. Regarding Samsung tablets, my wife is 0 for 2 on 10" models but I did buy both used so I won't blame Samsung entirely.
[Galaxy Tab S2 Original Android Development] :
Let me know if I can test something or if you need logs. I'd be happy to help.
[Galaxy Tab S2 Original Android Development] LuK1337:
I prefer patches heh
[Galaxy Tab S2 Original Android Development] :
Who doesn't?

Setting up the build environment and building the distribution from source seems to be easy enough, I looked into it. The big hurdle is that I know neither the code base nor the Android debugging tools/techniques. Also, my gut feeling is that this is probably something at the kernel/drivers level. It doesn't look at all like some application or service is keeping the tablet awake or, if they do, Wakelock Detector doesn't see them.

Before I can provide patches LOS will be at version 17.1... :(
[Galaxy Tab S2 Original Android Development] initsuj:
Bootloader T713XXU2ARB1

I have bootloader T713XXU2ARB1 (barnes and noble nook version). Of course, it isn't officially supported in the install script, but I was able to add it to the updater-script file and do the install. Everything, except the backlight and fingerprint sensor works. However, I foolishly tried to use the built-in update system without thinking and now I'll need to do a fresh install. Any way to get this bootloader officially supported?
[Galaxy Tab S2 Original Android Development] LuK1337:
No, we will not support this bootloader. We only support nougat based firmware.
[Galaxy Tab S2 Original Android Development] initsuj:
Thanks for the response! This, coupled with the fact I was a little more comfortable with the process, I was able to piece together the steps. For anyone else as blind as me, the Barnes and Noble version (BNN) only has official firmware to marshmellow. So, I used updato to find a XAR (US version) version for 7.0, though it wouldn't boot into the os after the update. It did do the trick and update the bootloader, which let me install an unaltered version of lineageos 15.1 with full support for the fingerprint sensor, backlight and built-in updates went without an issue.
[Galaxy Tab S2 Original Android Development] :
An update on this topic: I updated to the latest weekly build (June 18) and now the tablet sleeps like a baby. Yesterday I thought it was a fluke, but today it's doing the same. I didn't change anything else (no new apps, no removed apps, no change in settings).

The bottom line is: whatever you did, don't undo it! :good: :)
[Galaxy Tab S2 Original Android Development] Limitscrw:
I installed this bad boy two days ago from stock, and it has completely changed my opinion of the T713: it is actually functional now!

Thanks for your great work LuK1337!
[Galaxy Tab S2 Original Android Development] deejayjaytay:
Updates Failing

Have the last two updates (June 18) and (June 25) failed to install for anyone else?
[Galaxy Tab S2 Original Android Development] insid3r:
Hi guys,

Congratulations for this ROM! Was on stock untill this week, this a breath of fresh air to the tablet!

Had some problems with heimdall (had to use odin instead) and encryption (had to format DATA first) but worth the troubles!

Thanks
[Galaxy Tab S2 Original Android Development] nostupidthing:
a quick q... there has been some custom "treble" enabler custom mods out there e.g. for Xiaomi devices, is it possible for tab s2 as well? it would simplify further upgrade to P, S, T... etc... :D
[Galaxy Tab S2 Original Android Development] LuK1337:
No, it wouldn't help at all lol.
[Galaxy Tab S2 Original Android Development] insid3r:
Hi guys, first days with this ROM (lineage-15.1-20180625), I noticed a severe drain during night/tablet is not used, is there any fix for this?
[Galaxy Tab S2 Original Android Development] brightjh01:
Just got LineageOS 15.1 (0702) running on a new to me SM-T713, tried search tread didn't fine anything on the navigation light on nav bar they are not lighting like they did with stock, they are working when I tap them, This can't see them well. any settings to turn them on?
[Galaxy Tab S2 Original Android Development] brightjh01:
Nevermind I found it in settings. They're already turned on, I just turned it off then back on ,and rebooted device all works well now.
[Galaxy Tab S2 Original Android Development] jabbermacy:
What is the deal with the root add-on? I flashed but it doesn't do anything.. no SU in apps. Just flashed SU, no issues
[Galaxy Tab S2 Original Android Development] heartog:
Does anyone have issues where notifications would be delayed for a long period of time if device has been sleeping and not being used for a while (e.g. 2 hrs). The notifications would usually come in a surge when there is one notification, along with some notifications from a while ago that didn't show on the devices but did on others. I don't seem to notice the Wi-Fi disconnecting when the device is sleeping. Thanks!

Running 15.1 20180702 nightly
[Galaxy Tab S2 Original Android Development] jabbermacy:
Also, wifi goes completely dead randomly, only reboot fixes, any ideas??
[Galaxy Tab S2 Original Android Development] brightjh01:
ok so far I have had only one thing not working for me and that is bluetooth , and a search thread i see it's and old problem.? i think or have i did something wrong?

Not a big problem has SM-T713 is use for reading and web stuff. My nexus 7 has become music player .

Thanks for the rom:)
[Galaxy Tab S2 Original Android Development] lmacmil:
I think this is a hardware issue since my bone-stock T713 on Nougat does the same thing.
[Galaxy Tab S2 Original Android Development] Deltadroid:
It is most likely more of a wifi driver bug. One workaround might be to disable fast roaming in the wifi config.

Edit:

https://xdaforums.com/showpost.php?p=77012370&postcount=460
[Galaxy Tab S2 Original Android Development] borntochill:
Does this ROM include the LineageOS 15.1 Burn-in Protection feature? And, if so, could anyone using it comment on how well it works in protecting the Galaxy Tab S2 AMOLED screen?
[Galaxy Tab S2 Original Android Development] nostupidthing:
As long as you are here pumping builds that would be fine. Thanks alot

I plan to ride my t713 for 3 more years at least
[Galaxy Tab S2 Original Android Development] Deltadroid:
Actually, the problem with WiFi is with the IpReachabilityMonitor in Android frameworks. This is why both lineage and stock are affected. Disabling this monitor fixes WiFi 100%. This issue also depends on your router.
[Galaxy Tab S2 Original Android Development] lmacmil:
None of my 3 other current Android devices has this problem, nor did many other Android phones and tablets (including 3 other Samsung tablets) I've owned in the past. So I don't think it's strictly an Android problem. There must be something about the S2 hardware that Android doesn't like. It's not a huge deal for me since it only happens once or twice a month or so.
[Galaxy Tab S2 Original Android Development] corvek97:
Just flashed for the first time this ROM after being unsatisfied with stock ever since I got this tablet and this is exactly what I was looking for

I haven't experienced any WiFi issues but FP unlock is definitely not perfect or anywhere close to how good it was on stock... My main issue however is that it keeps freezing after a couple of hours and stays stuck there until I do a hard reboot. I'm considering flashing again but before I do that I'd like to know if anyone else here has experienced this and how/if did you solve it? I'm new to all of this so I might've admittedly done something wrong or skipped over something that I should've not. Thanks in advance

Update:

Nothing has worked so far... I've re-flashed over 3 times now. I'll be going back to stock and see if it's the same there, though I did not have this issue when I was in stock before so let's see
[Galaxy Tab S2 Original Android Development] :
Hi guys, it seems that you undid what made the tablet sleep well. The last few builds are pretty much terrible from this point of view. A temporary fix is to reboot the tablet every few hours, but this is really a bit annoying.

This are the stats since the last reboot, I have been using the tablet quite a bit in the last few hours, so they are skewed. If I leave it alone for a while, the "Awake" percentage goes easily up to 60% or more.
[Galaxy Tab S2 Original Android Development] LuK1337:
I did nothing.
[Galaxy Tab S2 Original Android Development] :
Well then maybe someone else did, perhaps in the common AOSP code. Look below: 0.0 seconds of deep sleep.
[Galaxy Tab S2 Original Android Development] knoxjon:
Fwiw on all of the recent builds, I get great deep sleep as long as the wifi is off. I do have the wifi bug every few days and have to restart, but it's not been as bad as it was a few months ago.

I use wifi automatic to keep the wifi off when the screen is off.
[Galaxy Tab S2 Original Android Development] Neon Black:
I recently purchased a T713 specifically because it was on the device list for lineage. The device came with nougat installed, I've unlocked, flashed twrp 3.2.2 but when I tried to flash lineage-15.1-20180730-nightly-gts28vewifi-signed I received error 7 and error about my device T713XXU2BRF4 not supported. I've managed to bypass it and everything seems fine so far. Just wondered if there was a known issue with this model?

Thanks!
[Galaxy Tab S2 Original Android Development] LuK1337:
It'll be fine starting from next builds.
[Galaxy Tab S2 Original Android Development] corvek97:
Bit of an update on my screen freezing every couple of hours:

Seems to have been caused by having Flux installed and enabled. After I uninstalled I have not experienced any freezing for days :fingers-crossed: