yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] HmonsterG:
Hi, this is my first post here. I have a pair of Galaxy Buds + and wanted to install the Galaxy Wearable app, so i did but encountered this problem, when i open it i just get a popup that says

Notice

The operating system on your phone has been modified in an unauthorised way and is not compatible with the samsung gear app. Check your Operating system and try again.

Obviously the OS was modified, due to the custom rom, but i need to find a work-around to use this app, if anyone knows what to do to fix this please help me :D

Extra Info:

Phone : S10+ Exynos
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
LineageOS is a free, community built, aftermarket firmware distribution of Android 7, which is designed to increase performance and reliability over stock Android for your device.

LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

Instructions :

Download the latest build and (optional) GApps

Boot to recovery

Flash the latest build

If you want GApps you have to mount system first:

Mount -> System -> Go back to the first page and install GApps as normal

Reboot

Downloads :

ROM : LineageOS-14.1 for gtexswifi

GApps : https://opengapps.org/ (ARM - 7.1 - pico)

Reporting Bugs

DO NOT Report bugs if you're running a custom kernel or you installed Xposed

Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)

If it is a random reboot, grab /proc/last_kmsg. (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)

Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues. Any bug not reported in the bug report format below may be ignored.

What is your--
LineageOS version:
LineageOS Download url:
Gapps version:

Did you--
wipe:
restore with titanium backup:
reboot after having the issue:

Are you using--
a task killer:
a non-stock kernel:
other modifications:

Provide any additional information (observations/frequency of problem/last version it worked on/etc) as needed:

Known Bugs :

Camera doesn't work (use opencamera instead)

RadioFM doesn't work

Credits :

@jedld for a bunch of things

@chiefwigms and @osm0sis for dhtbsign

Source :

LineageOS

android_kernel_samsung_gtexswifi

android_device_samsung_gtexswifi

proprietary_vendor_samsung_gtexswifi

android_hardware_sprd

XDA:DevDB Information

LineageOS for gtexswifi, ROM for the Samsung Galaxy Tab A series

Contributors

_mone

Source Code: https://github.com/lineageos

ROM OS Version: 7.x Nougat

ROM Kernel: Linux 3.10.x

ROM Firmware Required: T280XXS0ARJ2

Version Information

Status: Testing

Created 2020-09-03

Last Updated 2020-09-08
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Reserved #1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Reserved #2
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] totofe69:
Hi.

I did everything You said but unable to make everything after flashed your Last twrp file.

So I know how.

My rom firmware is T280XXU0APF6. Not T280XXSOARJ12.

That's why it doesn't work
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
Thanks for your job

How do I install magisk?

Sd cannot be used as an intern
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheCopacabanaMan:
Thank youuuhhh very macho for your work, it looks awesome

Just one question: i installed ev'rything, and looks ok (apart camera), but i was not able to get any sound. Is it just my broken-broken-tablet, maybe?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Just flash the zip file via TWRP, if you don't see the magisk app after rebooting extract the .apk from the zip file and install it as a normal app.

Thanks for reporting, I'll have a look into it.

Which build did you install? The 20200903 build has audio working.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheCopacabanaMan:
Ok, i'll try that one :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
is it possible to incorporate "close application" by leaving the back button pressed?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheRaven100k:
Amazing work! Seems to be working well except for the sdcard.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Settings -> Developer Options -> Kill app back button
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
Thanks.

The sound in the bluetooth headset does not work and hbo crashed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] barrie.kenyon:
I have now loaded the custom ROM, and it works!!!!!

As a complete noob I had to puzzle some things out, but I got there in the end.

For other noobs. the process was:

1. Download the ROM, TWRP-3.4.0-0, ODIN

2. Copy ROM and GAPPS onto an SD card.

3. Run ODIN on your PC, load TWRP, follow instructions to boot into TWRP

4. Install ROM and GAPPS from SD card using TWRP

5. Boot into new ROM, setup network, Google account, etc

Enjoy!!!

You will find links to TWRP, ODIN with a quick search. Full instructions there.

All seems to working except camera.

Thanks to _mone.

Brilliant
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
New build: lineage-14.1-20200908-UNOFFICIAL-gtexswifi.zip

Removed some unnecessary blobs and services.

Minor power improvements.

Added sdfat support.

"Advanced Restart -> Reboot to download" now works.

Fixed few issues that came up on the logs.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
I'm not sure if I'll be able to fix this issue.. but I didn't give up on it yet.

I need logs for it as I can't reproduce it myself.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Verhuel15:
thank you for your hard work :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
I don't understand much, I hope this logcat serves you.

https://www.dropbox.com/s/miz0mixs7x0c48s/logcat_09-08-2020_21-33-59.txt?dl=0
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Flash the attached file, it should fix the hbo issue. Let me know.

Didn't see any logs related to the bluetooth problem.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
Hbo Now works perfect, thank you.

Sorry in the logcat I did not put the Bluetooth

Here you go

https://www.dropbox.com/s/gnka8yvi976aa6y/logcat_09-09-2020_07-02-36.txt?dl=0
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] barrie.kenyon:
Hi, and help!

I flashed the new ROM and it worked fine - see posting above yesterday.

Everthing worked fine until I rebooted the tablet.

Now it tells me 'Custom binary blocked by FRP lock' when it tries to boot.

I used ODIN to try to reload TWRP to start again, but that is also now blocked by FRP Lock.

How do I get back to a point where I can start again, and this time get TWRP to wipe everything.

Help!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Verhuel15:
Holly Molly is ready THANK YOU,I HOPE YOU FIND A GOOD JOB in the future :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
Cannot be installed gapps pico
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
I install the zip but they don't appear as installed
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Read the OP
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] MiGameplays:
Hello to _mone and everyone.

The ROM looks fantastic! I finally found something that worked for this model. But, here are some questions and our ideas:

-It is not possible to record videos with the camera, just take pictures, even with the "opencamera" or another application.

-Can I install the latest Magisk (make root changes) without worrying about bootloops?

-If other builds are released, can I update with TWRP without losing anything?

Well, those are my only doubts so far, but other than that, the ROM is working perfectly, I don't even have to worry about the FRP (at least so far) :)

thankful,

Miguel.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Yeah, camera doesn't really work.. and I'm not sure if it'll ever will.

Yes, I'm using it myself. No bootloops.

Yes, just "dirty" flash the new build and you won't lose your data.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] syan8182:
How do you do a proper dirty flash?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jimbomodder:
Wipe cache and davlik cache then flash ROM and reboot
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] syan8182:
Thank you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
GPS does not work well for me, SD is perfect and bluetooth Sound has many cuts
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zippzYT:
Can Ubuntu touch be ported to this tablet using this LOS build?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
The logcat is only 9 lines long. Can't do much with it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Not that easy.. for ubuntu touch you need to patch the kernel and create an halium-boot.img.. iirc you also need a system.img based on cm-14.1 and patched with ubuntu touch stuff.. as we have many patched repos to make the ROM work I'm not sure it'll be an easy task to port it for this device.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] juanysara:
Sorry 😅

Bluetooth sound and gps

Dropbox - File Deleted - Simplify your life

www.dropbox.com
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Rutilicus:
Thank you too much 💃🕺💃🕺💃🕺💃🕺
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Justin Thought:
There seems to be a renewed interest in this ROM now. After receiving no response to my comment before, I went ahead and flashed the ROM. I was very disappointed with the performance in several ways.

First and foremost, I found that it lagged quite a bit, especially when changing from page to page. There was a perceptible lack of speed while moving from one page to another.

But the most significant lack was in the performance of the WIFI. Although my tablet was able to connect to the WIFI network, I have several apps that I use to share information with my other equipment, through Gmail or other methods, and those apps refused to even acknowledge there was wifi available. That was the killer for me, so I returned to the stock OS.

About the only improvement I found over the stock ROM was the ability to customize the button actions--although that would in itself be a worthwhile reason to upgrade. Were there any other modifications over the stock ROM that I might have missed during my brief experience?

Would look forward to hearing if that problem with the WIFI has been solved, and if I missed other customizations.

Thanks in advance!

edit: Oh, and one other thing I discovered was the inability of the ROM to write to the external SD card, most particularaly with Titanium Backup, but I found this is true of any KitKat or above ROM with this equipment. I did download an app from Play Store called SDCardFix (or something like that) and it solved that problem on the stock ROM. Could I expect this app to be successful with the Lineage ROM as well? The little bit of memory on this equipment fills up very fast, especially if you have a few apps installed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Verhuel15:
i didnt find all those problems you mention except the lag between pages(the launcher ) but i think this is common because even in my s7 i have this problem anyway titanium backup is too old and it has too be updated over a year now i suggest you use alpha backup pro or migrate
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] MiGameplays:
Well, the wi-fi connection is really strange in this ROM, but what concerns me the most is the following:

After rooting on Magisk, my tablet automatically restarts at some random time of the day, but only when it is being used.

Will the bug of recording videos with the camera be resolved? Videos cannot be recorded.

Note: My battery seems to be discharging a little faster, I do not know if it is by itself, the general consumption that the ROM needs or if it is the consumption of the Wifi connection, because when I disconnect it seems that it lasts longer.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] MiGameplays:
I'm starting to think that I won't be able to continue using this ROM.:cry:

I hold important meetings with the "Google Meet" tool almost every day. Unfortunately, the tablet started to restart at the meetings I attended (it's very scary, it crashes, the sound goes into a loop before restarting). I tried to solve it by removing the root, but I didn't get different results, besides the Wifi that keeps disconnecting when I need it most.

In my opinion, this ROM has many strengths, such as: SD card as internal storage, compatibility with higher versions of applications, etc.:love:

Anyway, I really liked this ROM in several aspects and I really want it to be improved! If it weren't for some mistakes, I would use it forever! But, unfortunately, I'm starting to think that I can't use it until it's stable.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] GLRioux:
Have you found any other problems with this ROM? (Luckily we don't use Google Meet.)

Updating my wife's Tab A will be my first attempt at rooting and updating a device. She will kill me if the tablet is worse after I'm through.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] saltcushy:
Useful to install Ron
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ven316:
@_mone Can you build an overclockable kernel for this rom? It's sometimes too laggy not due to the small memory size but due to the SoC having a max clock of only 1300MHz.

I saw this from the old t280 thread and found out this guy had overclocked it to 1500MHz which is quite impressing for me.

https://xdaforums.com/t/t280-custom-rom-progress-thread.3658807/post-82004861
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
I recently get installed the rom in my smt280, but give me a lot of trouble, the most important is with the SD card, he tell me that is corrupt, is a 64gb one, I try to format it a lot of time without success, and after that, I puthink el SD card in a reader and convert it to ext4 manually in the pc, but the problem persists, another thing is that the GPS doesn't work, at least for me, and the gapps stop without having any reason. For other way, is incredibly fast with that rom, and a loooot lighter, I will appreciate an stable version of the rom in the future, I have now stock rom, because I can't fix the SD card trouble
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Verhuel15:
have you dowload thre recent version beacause the things you are reffering have been fix.if you have downlaod the most recent version and you have these problems take a logcat and upload here.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
Yes I download this

lineage-14.1-20210209-UNOFFICIAL-gtexswifi.zip

But I don't know how to make a logcat, explain me and I will do it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
Other thing, I can make a dirty flash over stock rom?

Bcz I try but give to me error 7, and locate the update script and delete the asserts, but continue giving it to me, and is a little annoying to reinstall everything 😅
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Verhuel15:
its reccomend to make a clean install by formating internal data cache dalcinnk and then install.how to take a logcat
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jimbomodder:
No you cannot flash over stock, 2 totally different OS. Which twrp are you using? Also any further info on the exact error? Maybe twrp log.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
66i

I'm using tarp 3.4
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mikeee513:
Hello I'm pretty new to flashing roms

So yesterday I decided to flash this to my tablet that was gathering dust and I have one big issue that stops me from using it: The wifi disconnects randomly (expecially when locking the screen).

Are you planning on fixing it soon or is it low-priority?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mathsiel:
I can't download latest version on androidhost. It says no mirrors found.

EDIT: I guess it's related to the site. I used a download manager and download finished.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] barrie.kenyon:
Hi

I have loaded up the new version of the ROM lineage-14.1-20210209-UNOFFICIAL-gtexswifi.zip and new GAPPS open_gapps-arm-7.1-pico-20210324.zip as per the instructions. I wiped everything first and mounted SYSTEM. It all appeared to load OK.

However the GAPPS did not show any icons on the home screen. They all showed in the list of apps, and had to be manually positioned on the home screen.

It all seems to work fine, just a little bit annoying.

Any ideas what I did wrong?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mathsiel:
First time I installed the gapps too, it didn't show in the apps.

I went to recovery and mount /system and proceeded to flash gapps again, then it worked.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Filipe123:
é possível colocar 2g de ram?

Translation: is it possible to put 2g of ram?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zippzYT:
I have installed the latest version of this rom, but I get custom binary blocked by frp lock randomly. i reinstalled this rom multiple times but sooner or later get that error
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zippzYT:
Will removing TWRP and using the stock recovery solve this issue?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] beans2:
mine is gtexswifixx, what can i do?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mikeee513:
Should be the same device did you run _mone's build of twrp? Or another build
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zippzYT:
you should be able to edit build.prop if you are rooted
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] itsfaiez:
What happens if i flash this rom on Sm t285. 😁😁 i am noob
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mikeee513:
You can't, this is only for the T280
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] itsfaiez:
OK

Thank you
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Baso_1990:
otg host with charging at the same time support?

edit: i have found this https://github.com/xtensa/lineage_14.1_usbhost_charge_patch

Is it possible to implement it?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mathsiel:
Thanks for the ROM. Tablet has resurrected.

Only think I find difficult to deal sometimes is the WIFI. On times, it'll simply not connect, others the networks won't show.

I have to reboot to normalize it.

Otherwise, it's great.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
I'm having troubles with the external SD, I'm using it normally, and when I flash the lineage, it doesn't recognize the SD, saying that is bad, that need to format, and is trying to format but doesn't format anything, what I'm doing bad?

I have an 64gb external SD, and works fine
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jak08:
installed the rom but sometimes my tablet shuts down himself an it didn't happen in touchwiz.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Bastos85:
Hi guys. My Tablet crashes and restarts whenever I watch videos, whether on youtube, facebook or website. anywhere.

And WIFI sometimes disconnects and goes a long time without finding a network.

Anyone else with this problem? I did the installation again, but the problem persisted.

Tablet: T280

ROM: lineage-14.1-20210209-UNOFFICIAL-gtexswifi

Gaps: open_gapps-arm-7.1-peak-20210502

TWRP: twrp_3.2.1-1_sm-t280_080118
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mathsiel:
Know issue. Just read the replies to this post.

Although it happens, I still think it is better then the stock ROM.

I'm not sure if the dev is still developing fixes, so... we have to deal with it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Bastos85:
I liked the ROM but unfortunately I will have to go back to STOCK. I use the tablet for video conferences and it restarts in the middle of the conferences
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] cssobral2013:
@_mone - Are there any plans for you to port Treble to our gtexswifi?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] pc5895:
@_mone

Estou com problema no whatsapp ! Não está saindo som nas ligações!

Translation: I have a problem with whatsapp! There is no sound coming out of the calls!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] apadron1304:
The latest build works fine, but it having troubles with the WiFi, it doesn't see any wifi sometimes, and some times see it but doesn't connect, if can solve that, I will appreciate, thanks @mone
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] pc5895:
O WiFi esta desconectando e não esta localizando a rede WiFi! Depois de varias tentativas ele conecta!

Translation: WiFi is disconnecting and not locating the WiFi network! After several attempts it connects!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Badger50:
Greetings, and welcome to XDA. Please be respectful and observant of XDA Rule #4 for all of your future posts. Thank you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ven316:
Can anyone mod @_mone 's kernel to overclock the sc7730sw to 1500MHz+ and maybe add some governors?

I've seen overclocked stock 5.1.1 kernel by @Gleba1337 Overclocked Boot.img and it is working.

Therefore we can confirm that the spreadtrum SoC in T280 is overclockable.

But I have no idea where is the cpu clock table located at in @_mone 's kernel source as I have never mod a spreadtrum SoC device before.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jak08:
Switched to stock after 3 months, really, too many shutdowns, it was really annoying especially when playing or using apps, such a shame, it was really the most updated rom for my smt280, the only way to format sd card as internal memory, now i'm stucked with 8gb again 😭
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] godzfirez:
Apologies in advance, but for being a very rom flashing and noob person, could someone please tell me the apps and steps I need to accomplish this? I'm very sorry.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ven316:
Anyone interested in porting halium 7 ubuntu touch?

I've tried building ubports with _mone's source but cannot fix the errors when compiling.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] JacPlas:
Hi there, I'm new on this forum.

I tried to install [LineageOS-14.1] Samsung Galaxy Tab A 7.0 - SM-T280 (gtexswifi) on my tab sm-t280.

The tab works again, but no wifi and no camera (is know). The wifi switch stays grey.

Can anyone help me? Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vhmoliveira:
Hi

how can i install this rom on a gtexswifixx version???

Thanks for the help
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ven316:
root the device

then edit build.prop to change device model name

after that flash it with twrp