yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
I had to fiddle with this thing to get it into fastboot mode to load TWRP recovery. The trick is... turn it off completely, hold down the volume up and down buttons but don't turn it on. Instead plug it into a cable that's connected to your PC. It'll turn itself on and launch into fastboot mode and then you can load TWRP through Odin.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LucasGam289:
I have a problem with this ROM, it's amazing, but it doesn't have storage, when I download something on the web, it crashes and if I use an alternative file manager (zarchiver) it tells me "Access Denied" can someone help me?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Sounds like a permissions issue. Go into the app settings for your browser and file manager and make sure that they have permission to access internal storage. I have this ROM and not only do i have access to storage i have a 250GB micro SD card installed for expanded storage as well. So it'll work once you hit the right setting.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LucasGam289:
No, the problem is mostly about the folder root "The 0 Folder" which there is absolutely nothing and in zarchiver it tells me "Access Denied" and in the default file app it tells me "No Items"
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
This worked with a USB2 port - not USB3
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Yes, sorry. I figured that was a given as this tablet has a micro USB port on it and not USB C.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
Successfully installed. All good. Thank you!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Terra111:
while I tested this and it worked, this isn't my issue. I can flash the recovery with odin (I am attempting to install lineage recovery instead of twrp btw) but I can't reboot into the recovery after flashing it since the device simply won't let me and boots directly to android, overwriting the custom recovery with stock.

These are the inputs I'm using to attempt booting into recovery:

Holding Power + Volume down until the screen goes black, holding Power + Volume up immediately after it turns black, letting go of both buttons to confirm the bootloader warning, then immediately holding Power and Volume up again to boot recovery. This works when shutting down from android, but not when rebooting from download mode after flashing lineage recovery.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
I was on the Feb 7 and now March 14 build and auto rotation works. Check settings, display, rotation settings and that all the boxes for 0, 90, 180 and 270 are checked.

You could have a defective sensor?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
I could have a defective sensor but it worked last week with Samsung's stock software before I flashed lineage so seems unlikely...

And I verified I have auto rotation enabled and all those boxes you mentioned are checked.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
FYI, auto rotation works on mine (March 14)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Hmm. Maybe it is defective on mine then (wondering if there's a way to confirm it's working or not in my current os? 🤔). Still can't complain for free. I can force orientation in the launcher settings so I guess I'm good. I mostly use this for reading and web browsing in portrait mode anyway.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
So this morning I decided to root lineageOS before work and ended up doing some more testing.

Found an accelerometer calibration app and the tablet can definitely tell what orientation it's in. Use that to recalibrate the device to no avail. Screen just wont rotate automatically. I have to be missing something. I double checked to make sure what build I'm on and it is the 3/7/2023 nightly build.

Here's what I've tried so far...

Notification shade toggle is set to auto rotate

Display settings in the main settings menu are set to auto rotate and all 4 angles are selected

Checked auto rotation setting on each of the launchers i have installed (trebuchet, ADW and Nova7 all set to auto rotate)

Very odd that I can't get the screen to rotate. Even on nightly builds of roms in the past, once the devs get auto rotate working, it just worked.

Any other ideas? If not i'll just live with it until I decide to update to a newer build as they come out. It's working great otherwise.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
Why don't you update to the latest (March 14)?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
I had started with the 2/28 build and tried to update to the 3/7 build and it boot looped and i had to resetup everything all over. I have a mid term this week and reference my notes and text book from this thing when testing so i don't want to mess with it again till next week in case that's an issue. I will update it soon. Just was curious if there's any ideas i hadn't thought of, since i was able to confirm that the sensors are working as expected.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
Understood. The 14th is the first version I've tried, so I can't confirm if there was an issue on previous. But I reconfirm that the 14th is working and both lockscreen and display rotate automatically as expected.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
I'll give it a try after I get past my mid term this week
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
Auto rotation also worked in Feb 7 build.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] default_user8:
I'm looking at a tablet that has build T290XXU3BTG1,

can anyone tell me if that build is early enough to flash a new ROM?

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Yes, you can. Your bootloader is version 3, which is good.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
How do I get from the original version of this ROM to the current version? I have the 2-28 and I am rooted, but no TWRP...

Finally got it. thanks. very unfriendly...

BTW: Dirty flash (over Jan release) worked fine
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
You could say that, but not everyone here has the time at every moment. So, not everyone will reply in just a day.

Oh, and congrats with your upgrade!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] blazzer12:
Is VoLTE working? I am guessing this ROM is for the WiFi variant (t290) so there will be no support for Mobile Networks of T295... is that so?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] blazzer12:
My SM-T295 is using the latest firmware as of now.

Product Code: SM-T295NZKAINS

PDA: T295XXS4CVK1

CSC: T295ODM4CUK4

Baseband: T295XXU4CVE3

Bootloader: T295XXS4CVK1

Given the warning in the first post should I even bothering trying to flash a custom ROM?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] xperiazu21:
No, this ROM is for T290. T295 also works, but cellular data doesn't work.

Your bootloader has been updated to version 4, so this ROM cannot be installed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] blazzer12:
Thank you for clearing that up. Do you think GSI ROMS might work in my situation?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
No, no custom stuff can be installed, including any type of ROM.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] blazzer12:
Sorry for repeated questions but I am curious: When I go to developers settings it's showing the "OEM Lock" as "bootloader already unlocked". Even then it means only firmware form Samsung can be flashed right? NO GSI Roms?

I wonder why Samsung bothered to enable Treble on T295 if they just mean to lock out any possibility for installing GSI ROMS.

😞​
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
some people really think I'm here all day lol
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] xperiazu21:
Yes, the android 9 bootloader (version 3) is currently required to boot any custom ROM on the T295.

But since a certain version of the official android 10, the bootloader version has been upgraded to 4, resulting in a bootloader that cannot be lowered back to android 9.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
Tablet operation unfriendly, not XDA....

Sorry
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] default_user8:
Quick question, does the GPS not work?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Oh, ok. Miss understood.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Got past my mid term and updated to the 3/21 build. Still no auto rotate. Sensor calibration app I have on here shows the accelerometer working. At a loss.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
No, because this was made for an SM-T290 which has no LTE and GPS, although it works on the SM-T295.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
GPS definitely works on the SM-T290 (wifi only) model. Here's the code for SM-290

https://github.com/LineageOS/android_device_samsung_gtowifi/blob/lineage-20/device.mk#L103-L107

The SM-290 has no LTE.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] default_user8:
Thanks,

I'm not sure what was going, but Waze was not working at all(no map and no location) when I first installed it on this tablet. That's what prompted the question about the GPS, but after a reboot everything seems to be working now. This tablet is replacing an older Tab A that I'm using as an interface for my radio in my F150.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
Please provide a log: https://wiki.lineageos.org/how-to/logcat. I'll try to look at this when I am not crushed in exams.

That said, it's working just fine on my end...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Appreciate that. I've attached the logcat.txt file. No rush. It's not debilitating. Would be nice to figure out what's what though so thanks a lot.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
There's no attachment in your post. For some reason, xda doesn't seem to allow .txt attachments or there's a bug. Zip your attachment and upload it again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
Sorry about that. Been a long time since i've done any of this stuff including actually posting on XDA. lol
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] default_user8:
I can't seem to find it, but did I see there's a way to skip the "warning unlocked bootloader screen"?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
This is actually not completely relevant to this thread though. I thought it wasn't possible anymore, as all firmware files (including the bootloader, which keeps the warning) are encrypted and can't be edited in a way.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
I'm finding nothing of interest in this log, unfortunately.

I implore you to double check with the stock ROM. (for obvious reasons, do NOT flash the T290XXS4CWA1 firmware, or you will be permanently locked out of custom firmware. Use T290XXU3CVG3 specifically for testing.)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CTTKDKing:
When i find some time to flash that, i'll give it a try. For the purposes of the tablet it's not a big deal. It's too slow of a device to use for much more than the reader functions i use it for. Thanks for looking into it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] antharys96:
Is it possible to downgrade from bootloader version 4 back to bootloader version 3? If I remember correctly, we flash the bootloader through Odin to even use custom roms... I'm heavily disappointed by this decision from Samsung. I bought a second-hand tab a (really cheap) but didn't check for the bootloader version at the spot.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Sadly, it is not possible to downgrade, meaning it is impossible for that tablet to flash any custom stuff on.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I guess that there is still no workaround for the SD issue? Due to the fact it has low storage space, it would be nice to have the SD being able to keep apps. It did work on stock though. I also found out that Pixel Experience had the same issue and it was fixed. I guess it is somewhere in the software...

Is this feature also not working/disabled on (all) other LineageOS devices?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] taha490mokh:
hello, i have a sm-t 295. i have 2 ask:

1.lineage supported my device?

2.support simcard?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
The build works on a T295, but you will not be able to use SIM.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] taha490mokh:
OK,THANKS

I have simcard,.gsi rom is good?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] taha490mokh:
Or linux mobile distribution?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] IGor2Orel:
may i inform you that you can drop https://github.com/LineageOS/androi...fi/blob/lineage-20/proprietary-files.txt#L969 without loosing any functionality (you have to add qti powerhal to the tree too, for obvious reasons. generic hals rule XD)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
Is that so? I wasn't exactly sure what this HIDL was doing. Usually I leave Samsung impls alone unless I have a clear cut idea of what it does (like the WiFi HIDL I swapped for the AOSP one)

If you want, send a patch to Gerrit, or I'll check it out in the weekend.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
TWRP backup does not work. Fails with "create tar fork" error
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] IGor2Orel:
meh, I don't have the device to do that, build and test, i just know that's how it is. samsung health kinda does nothing and no other hidl relies on it, and as for the standard hardware.health, you can just build an oss one, which seems nice to me
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
iirc gts4lv's Samsung Health did do something which they went with adding the feature right into the kernel but I haven't looked that far into it. I guess another homework for me
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] taha490mokh:
It was a very technical discussion, I didn't understand. Is there a single ROM that supports the card for my device? Or a GNU/Linux distribution?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Using the LineageOS 20 GSI could work:

Andy Yan's personal builds // GSI - Browse /lineage-20-td at SourceForge.net

sourceforge.net

Choose the one with ARM64, and for an A/B partition. For the other things, choose it as you want. Make sure NOT TO USE THE VKNDLITE VERSION! You will download a .img.xz file, use an archive tool like 7-zip to extract it to a .img which you can flash using TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Hello @lifehackerhansol, I might have found a bug that irritates me a bit, I don't know if you or someone else could fix it.

But let's say:

I am letting it flash OTA updates with TWRP, using OpenRecoveryScript, and I have addon.d scripts (for Magisk, Gapps).

The problem is, the OTA update gets flashed with OpenRecoveryScript in TWRP, but the addon.d scripts not, I don't even see them running in any way.

Not even an error, they just are not running. I heard the addon.d scripts feature was implemented by custom ROMs, and the idea was from LineageOS/ClockWorkMod, that is also the reason why I post it here.

Can you tell me how to fix this or make a fix, if that is the case?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] faro89:
Sorry but Link for download doensn't work..
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] in_out:
hello guys

my bootloader version is T290XXU3BUE1

gtowifi:/ $ getprop ro.bootloader

T290XXU3BUE1

country INDIA

from where i download the T290XXU3CVG3 version for INDIA region ?

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] in_out:
download from here

LineageOS Downloads

download.lineageos.org
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
You can probably download the firmware from a site like https://samfw.com/. Be sure not to download the firmware with bootloader version 4 and download the you want to download!!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] in_out:
Thanks but T290XXU3CVG3 version is not available for india region

is it necessary to download and flash T290XXU3CVG3 version then install this rom? please guide me

As per lineage installation guide

Warning: Your device must be on bootloader version T290XXU3CVG3 , otherwise the instructions found in this page will not work.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
This one might work, but I am not sure:

Download Galaxy Tab A (8.0 inches, 2019, Wi-Fi) SM-T290 (INS) T290XXS3CVK1 in Samfw - Samsung firmware download

Galaxy Tab A (8.0 inches, 2019, Wi-Fi) SM-T290 (INS - India) T290XXS3CVK1 R(Android 11) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅

samfw.com

One alternative that you can do is to flash the firmware from another region and flash that, that does no harm as long as you wipe the data. I have PHN from The Netherlands on my tablet, but you might be able to use something like the firmware from Thailad (THL).
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I also think that it isn't required, lower versions can also work but it is always recommended to have the latest version that works, for TWRP 3.7.0 it is probably needed as that uses the kernel of T290XXU3CVG3. I am not sure about it, my firmware is on T290XXU3CVG3 with TWRP 3.7.0, LineageOS 20 and Magisk v26.1.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tymclrewhjbcpo:
It's been a while this tablet was running old software, so I decided to clean install lineageos but I'm facing with this error when I flash recovery.tar via odin and try to boot into recovery. The recovery.img was downloaded from lineageos downloads page. Bootloader is unlocked by the way, I'm stuck.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
What bootloader version has your tablet? Check so in download mode.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Try to install TWRP 3.7.0 on it. Then use TWRP to flash the LineageOS ZIP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
The TWRP package will flash the Android 9 bootloader which will probably allow it to work.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tymclrewhjbcpo:
I get SW REV CHECK FAIL : [aboot]Fused 4 > Binary 3 whenever I try to flash twrp, I believe it's due to me who made a unawarely mistake updated to version T290XXS4CWC1, the recent twrp is incompatible with bootloader 4 I think. Apparently, I'll stick with the stock rom onwards.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
It is not that TWRP needs to change anything. This is due to Samsung's new policy which will reject to flash TWRP. At the moment there is no way to get around it and will probably need to stick indeed with the stock ROM.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Meloferz:
Finally I'm running LOS 13 on my Tab A8 2019 :)

But cost me 16 bucks, I bought a used motherboard from ebay that wasn't upgraded to latest bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] G_Bot:
I just installed LOS 20.0 on my Sm-T290 And it's running very smooth, and everything works well. Thanks so much for this work. 👍
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Kaldun13:
Just installed latest nightly build, everything is smooth, but how can i get my ds4 controller work? Another BT controller works good, but ds4 just connecting, but not work at all, even i installed magisk module onecontroller.

Could someone check if dualshock controller works or not ?

UPD. rolled back on build 20-06 this is the last one with dualshock 4 supporting.

Last 2 builds from 27-06 and 04-07 there are no DS4 support
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Kaldun13:
I dont know why i decided to update fw using this instruction but as i had LOS20 installed with los recovery i got blue screen on boot "secure check fail : boot.img"

At the end of that instruction said after all of it if i have custom recovery Download this downgrade package, but the linked file "1-downgrade-aboot.tar" no more available.

So i stucked on it. Should i flash stock rom first ?

UPD just flashed last T290XXU3CVG3 official rom via odin, than installed LOS20 again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Meloferz:
With 27/06/2023 update, PS4 controller doesnt work. Only works wired
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Kaldun13:
Thanks, that's it, so i am still on 20-06 build, i hope DEVS will fix it, and please add DTW (double tap to wake) function !
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TuRkiShArmY:
Bootloader U4/s4 update killed every custom things.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Unfortunately, indeed. But let it be a warning for everyone. If your device still has an older bootloader, only maximize the upgrade to U3! U4 will make you need to stick with this slow stock ROM forever.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SunSlide:
Is there not a way we can petition Samsung (& others) to unlock their boot loaders at end of life for their devices. Luckily I didn't have this issue but it would be nice to be able to use our hardware the way we want.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] temporarium:
Lol, they want you to buy a new device instead. That's why the lock the bootloaders. Security is just a pretext.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Hello @lifehackerhansol,

If Android 14 becomes a stable release and gets published, plus LineageOS 21 of course, would you then upgrade this to LineageOS 21?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
i'm getting black screen after in stalling twrp or android 9 bootloader. is there any workaround for this ??
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I think your device came with Android 10, isn't it? Currently, we do not really have a fix for this, but the screen is accessible over ADB with screen mirroring.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
i have flashed android 11 with T290XXU3CVG3 bootloader. can i install multi disabler and lineage os using screen mirroring . is that possible. or if i need to build everything from scratch i will do. please point me in the right direction
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Not sure, I don't know whether TWRP would allow screen mirroring. Probably not as there is no networking, but maybe over cable. Honestly not sure...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
I don't know.

Things we know so far:

- kernel version 4.9 is slated to die in AOSP 14.

- we are kernel 4.9

- we have yet to see if it works anyway with 4.9

So until it gets officially released and people start trying to update their code, I won't have an answer. It's too early to know.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Isn't it possible to upgrade the kernel, or do I just not understand that part?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
It's a very tedious and difficult process to upgrade a kernel. Many devices don't live to tell the tale. It's especially harder on Samsung devices due to the insane amount of not upstream code that it has.

I did try my hand at it, but it'll be a long while until we see any progress out of it.