yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Follow up :

Can we utilize the info in my comment in this thread in gaining some control on SM -T290's bootloader ?

[ROM][OFFICIAL][14] LineageOS 21.0 for SM-T290 (gtowifi)

WARNING: Samsung rolled out a new firmware update starting roughly at the end of January 2023. This contains bootloader version 4. From what we understand with SM-T295 bootloaders, this may or may not permanently lock you out from ever flashing...

xdaforums.com
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] t-mobile_mda:
hey guys..

is there any tested twrp for T290 U4 binary..?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Till now after so much expectaions no. May some angel come and save us from this Samsung holocast of they locking devices' bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] minhcanhdn:
Reboot to recovery and see after T290

- T290XXS5... => Ver 5

- T290XXS4... => Ver 4

- T290XXU3... => Ver 3
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
I got a news for SM-T290 Tab :

[ROM][OFFICIAL][13] LineageOS 20.0 for SM-T290 (gtowifi)

WARNING: Samsung rolled out a new firmware update starting roughly at the end of January 2023. This contains bootloader version 4. From what we understand with SM-T295 bootloaders, this may or may not permanently lock you out from ever flashing...

xdaforums.com
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Normal_user23:
How i can do with my binary S5
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
I also want to know
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zekuzeyoshi:
Hello bro, is there any update/step to root samsung galaxy Tab A 2019 T295 Android 11 Baseband Version:T295XXS5CWA1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
No bro, not until we create a havoc on Samsung and pressurize it or hack the bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Windows Vista Empire:
How did you install TWRP on SM-T297?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] thepizzahere:
duruyorsa twrp dosyanı atabilir misin bende de t297 var
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] necat_:
Bootloader sürümüm 5, bunu tabletime yükleyebilir miyim?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heribert yavuz:
hayır.

no.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] pootee212121212:
Hi I installed Your TWRP But my problem is the wierd corrupted folders on the storage

I yesterday managed to fix it but the process is where i erased some data but is there a POSSIBLE Solution to fix this without erasing

Any data from my tablet?

Oh also I broke the SD Card slot this is not the problem it's just a wierd thing and I don't have a usb a female to micro usb male adapter to flash the firmware I used to have a adapter but it's lost however I yesterday bought one online

But it comes tomorrow we'll I can't wait for it to come

But I yesterday flash lineage os and it's also not the problem Thank you
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Here you are freely flashing software on T290 as you are on binary v3, while I am jealous of you guys and depressed as I can't flash and try out custom rom on t290 as I never got to try the custom rom lineage on my device as i upgraded to binary v5 before checking on it.😭
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AlinROMsDevices:
Downgrading is impossible unless you have a special tool available. I have binary V3, running One UI Core 2.1 on Android 10.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
@Magendanz would there be anyway to add encryption support to this TWRP port? I am also looking at porting TWRP to some other devices, but may also want to look further into it for this device to improve it on here.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
What's that special tool can you tell me about it? Any hint atleast ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] JCARLOS123:
Hello,

I am new to TWRP. I have a couple of questions. What is the proper way to back up your rom? I mean what boxes should i check when creating a backup? Also, what is the proper way to do a wipe when I want to restore a backup of a rom? I find myself having to reflash the rom all over again when I try to restore a backup. The rom freezes on the google bootup icon with the bar going across every time I try to restore a backup. I notice that the google icon flickers when it is not going to bootup. I think it has something to do with what I select when I wipe before I restore the rom. I have installed twrp-3.5.0_9-0-T290XXU3BTI2-20210102.tar.md5, Nexus_Stock_AQ_T290XXS3BTL6-20210104, Magisk-v21.4. I love the ROM b the way. Thank You for your hard work. Very much appreciate any assistance.

Thank You,
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Viggen66:
I have just received my brand new tablet, is for my kid, it came with Android 10 February security patch, I have being reading, to install TWRP and root afterwards, we need to firstly downgrade the bootloader and then install TWRP and root, where can I find those files and possibly a tutorial, btw this tablet is great gadget

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Viggen66:
Followed instructions, installed this file which was exactly the same as my stock firmware, and only get a black screen but can gain access to mtp what is wrong with it? Don't tell me I have a bricked tablet.

Good news, that's why I have tried this twrp, doesn't change the bootloader, I managed to reinstall stock rom, luckly I already knew how to get it without seeing anything, owing to the black screen, pressing vol up, and so, but this twrp has issues, you only get black screen but at least it doesn't brick the tablet, don't know if this was due to disabling auto reboot, to make it easier to boot to twrp.

Btw is there any way to remove the annoying press power to continue after you unlock the bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] gcrutchr:
I cannot address the twrp issues, but the press power key after unlocking bootloader cannot be removed. The code is in the bootloader.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Viggen66:
But did it happen to someone else, after successful flash, the tablet only displays black screen no image, but in the background it works, as normal operation but displays no image.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] xompax:
I too have this same problem. Just tried flashing the TWRP v3.5.1 to my brand new Costco (link) SM-T290NZKCXAR using Odin3 vs 3.14.4 by checking the AP box and putting the TWRP v3.5.1 in the original top post in text area. When it finished successfully, my screen turned on (backlight illuminated) but black and vibrates when touched. If I turn it off by holding the power button, it turns on again to this same state. Any thoughts or ideas appreciated and happy to answer questions or provide more details. thx in advance!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Aballamis:
Use patched Odin. Also, I would (at same time) flash the aboot file in BL. I have flashed this (3.5.1_9-0-xxxx.tar) successfully (besides decryption) and rooted w/Magisk 21.4.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Aballamis:
Will the multidisabler keep the device unencrypted??? I flashed fix_vendor_10.0 on mine as it is on A10, then format data (after reboot to recovery as it failed after the fix_vendor_10.0) and it did decrypt the data, but after flashing Magisk 21.4 (which worked, in manager app is says ramdisk>no but superuser works and mods flash) when I reboot into recovery it still prompts for swipe to enable system mods and is encrypted. . . . .
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
New release just posted...

Downloads:

twrp-3.5.2_9-0-T290XXU3BUC1-20210516.tar.md5

twrp-3.5.2_9-0-T290XXU3BUC1-20210516.img

Change Log:

v3.5.2_9-0: (2021-05-16)

Updated to T290XXU3BUC1 posted kernel source.

Updated to TWRP 3.5.2 release built from android-9.0 branch.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
An important note about file-based encryption:

The standard Multidisabler from @ianmacd automatically changes the vstab to make encryption optional. While this is great for viewing files in TWRP, the OEM vendor partition for this particular device won't allow any kind of screen lock (e.g. PIN, password, swipe) if the userdata partition isn't encrypted.

Because of this, I'm now recommending that you install @SolidHal's version that maintains encryption which is available here.

With any luck, I'll have an update for TWRP at some point that supports Samsung's file-based encryption, but until then you'll be looking at folders and files on the userdata partition that aren't human-readable...but at least you'll be able to lock your device.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
For those of us who already have the no-encryption version, what's the best way to transition to using encryption? I'd prefer not to have to reinstall stock if I can help it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
You can just use the TWRP install, Format Data, and then reboot to system. You'll get a factory reset in the process, though, so ensure you've got a current backup.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
I've got the screenlock working!!! Thanks.

There was one extra step I needed to do. Which was to edit /vendor/etc/fstab.qcom (in TWRP) so that the original entry for /dev/block/bootdevice/by-name/userdata was active - the one with fileencryption=ice. Formatted again, then rebooted, and was able to set up a PIN.

Are there any other items in that file which need changing, or should that be sufficient?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Yes, if you've already run the original Multidisabler, you'll need to revert the change to the fstab. The one from @SolidHal won't remove the forced encryption, but it won't restore it for you either.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] patmasxda:
hello, same issue with version 3.5.2_9_0

i got a black screen, tablet is ok but no screen !

is there a way to boot in TWRP ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
I'm going to need some steps to reproduce, since it's been working fine for me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] patmasxda:
you can see attchments

so in download mode flash AP with odin 3.14 (no reboot)

power + VOL+ buttons

with adb devices, i saw my device in recovery mode but no screen .

my device is a Spanish tablet

to get it back work, i must flash AP + BL to stock, if i only flash the AP i keep the black screen.

perhaps there is a modification in the BL when i flash in TWRP ??

tell me if you want more information
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] detroitredwings:
Tried to install TWRP from the OP, the process in Odin went fine, upon rebooting into recovery I get this (and I've made about 7-8 attempts to hard reset / reinstall / reboot to recovery). Does the message at the very bottom mean anything to anyone? Any help is appreciated.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
So, it looks like you let the device reboot to the OEM firmware after flashing TWRP, which allowed it to restore the original OEM recovery...yet another useful Samsung security "feature" that makes life difficult for custom ROM enthusiasts.

Try to flash in Odin again, but hold the Power + Vol Up during the reboot to force it to enter TWRP, then run the MultiDisabler to disable the automatic OEM recovery rollback. It's a little tricky through the bootloader unlock warning, where you have to hit Power to proceed, but get right back on Power + Vol ASAP and hold it for another 5 seconds or so.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] detroitredwings:
Magendanz, it worked! Many thanks!​
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] themace51:
Hey

I am having the same problem, once i flash TWRP, and reboot, there is no display , just the back light. Is there a fix for this?

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] themace51:
Will try and explain.

My firmware is on T290XXU3BUC1

I can successfully installed twrp via Odin.

I reboot, instantly blank screen. I have rebooted into twrp with blank screen.

I was able to install the nexus rom, with adb twrp command line and works but all is blank screen.

I go back to stock and the display is back.

I have tried another twrp on this forum but that gives me security error.

I have also tried to patch ap tar with Magiskt but that flashes but when restart get security error.

Twrp is the only thing that works but complete blank screen with back light.

Tab is unlocked bootloader and oem unlocking on.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] cooltech786:
Sorry to bother. Just recently purchased a Tab A for home assistant interface. Mine updated to T290XXU3BUE1 rather than T290XXU3BUC1. Is there another TWRP build that I can flash? Thanks for the help! Looking forward to trying the Nexus ROM
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] V0latyle:
TWRP doesn't care about the region code; as long as your device is a T290, this should work.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sirp0p0:
My T290 has been updated to Android 11. It's build number is T290XXU3CUF8. Will this TWRP work as-is or does it need to be updated for this build?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Fusseldieb:
A bit much to request, but...

Is it possible to bring this TWRP to the T295?

That would be amazing.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
I don't have an SM-T295...so it won't be me. :-(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Fusseldieb:
Ahh that's a bummer :c

My T295 won't run Treble no matter what. People are able to run Treble on the T295, but I'm trying and didn't succeed, no matter what. There's TWRP for it and it supports Treble, the only difference is mobile data.

It just stays on the bootloader screen, turns off, vibrates and repeats. I tried vbmeta, different BL and whatnot.

Maybe you can give me a tip on what I could/should do.

I'll pay you a beer if it works ahahah
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Well, you've got to flash the aboot.mbn and vaultkeeper.mbn from the old bootloader and sign boot and recovery images with the AVB hash footer. That's really the trick for the T290.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Fusseldieb:
"from the old bootloader"

which old bootloader, the stock one from any stock 9.0 image?

"and sign boot and recovery images with the AVB hash footer"

Where and/or how can I get that?

Since I understand a fair bit of programming and Linux in general, maybe I can get this to work, if you provide me with some more information.

Thanks in advance!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
New release just posted...

Downloads:

twrp-3.5.2_9-0-T290XXU3CUG4-20211017.tar.md5

twrp-3.5.2_9-0-T290XXU3CUG4-20211017.img

Change Log:

v3.5.2_9-0: (2021-10-17)

Updated to T290XXU3CUG4 posted kernel source.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dstarfire:
So, how do we patch these with Magisk? I've tried patching both .img and .tar.md5 versions. The .img version doesn't work in Odin, and the .md5 version seems to be incompatible with the patcher.

And the software protections Samsung has put in make it impossible to boot WITHOUT a custom recovery or you get their 'security check failed' screen.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
You should be able to flash the patched .img file in the TWRP that you installed with Odin and the .md5. Just keep in mind that my TWRP has a custom kernel that fixes MTP on AOSP-based ROMs...but it might break MTP on the Samsung OEM firmware.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ins5736:
Build number QP1A.190711.020.T290XXS3BTL6

Dec 2020 security

TWRP install via Odin fails.

<ID:0/008> Added!!

<ID:0/008> Odin engine v(ID:3.1203)..

<ID:0/008> File analysis..

<ID:0/008> SetupConnection..

<ID:0/008> Initialzation..

<ID:0/008> Get PIT for mapping..

<ID:0/008> Firmware update start..

<ID:0/008> SingleDownload.

<ID:0/008> aboot.mbn.lz4

<ID:0/008> FAIL!

<ID:0/008>

<ID:0/008> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
What message do you get on the device? Is it possible the bootloader is unlocked or that VaultKeeper has been activated?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ins5736:
EDIT: Updated Odin and flashed successfully. Thanks!

Device reads:

CURRENT BINARY: Samsung Official

OEM LOCK: OFF (U)

QUALCOMM SECUREBOOT: ENABLE (CSB)

RP SWREV: S1, T1, R1, A3, P3

RP SWREV: K 3, S 3

SECURE DOWNLOAD : ENABLE

DID: 000015b953e5

download mode !!

Unsupport dev_type
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
You're basically flashing an Android 11 image (T290XXU3CUG4) over an Android 10 ROM (December 2020 Update), so I'd try flashing the latest OEM ROM first and see if that fixes the problem. I believe that T290XXU3CUG4 will be the last OEM release for the SM-T290 anyway.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
I installed TWRP back near the beginning of the year, over the December 2020 update (if I recall correctly). I sometimes wonder if running an older update as the base system is likely to have security issues or whatever.

Is there any benefit to updating the underlying OEM release and then reinstalling TWRP? Or best leave it as it is, since nothing appears to be broken?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
If you're happy on the December 2020 update, I'd stick with that. While the T290XXU3CUG4 OEM firmware release will likely be the last, it's an Android 11.0 kernel and we're still running into issues with cold charge and OpenGApps packages on Android 11.0. (The latest one is that WebView is broken.)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
Thanks for a very prompt reply. :)

Sounds like sticking with the older update is definitely the way to go, then. A good reminder not to tinker with stuff just for the sake of it. :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
For those wanting to try something new, I've built TWRP 3.6.0 for this device on AOSP11. Technically, this version isn't released yet, so there could be some bugs. That said, it's nice to be done with OmniROM and building on a more current AOSP foundation (which we can do because we've got an Android 11 kernel now).

twrp-3.6.0_11-0-T290XXU3CUG4-20211125.img

There's no Odin tarball release for this yet, so just flash the image file from within an older version of TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
I installed it on my T290 - yes, the one running the December 2020 update - and as far as I can tell, it's running fine.

Thanks for all your hard work. (y)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kb5rir:
I Stiil cant create a Twrp backup. 😟
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bigotier:
Thank you for this!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
When will we get the android 11 TWRP Tar to flash using Odin?

Pls sir give the working android 11 TWRP Tar, earlier ones give secure check fail now on android 11
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] themace51:
You think this would fix the blank screen problem? As i am unable to install twrp the older Android 9 versions due to blank screen. This could be really good if it fixes this? Could really do with the tar file as it is nearly impossible to upgrade twrp via twrp when the screen is blank :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
New release posted...

Downloads:

twrp-3.6.0_11-0-T290XXU3CUG4-20220123.tar.md5

twrp-3.6.0_11-0-T290XXU3CUG4-20220123.img

Change Log:

v3.6.0_11-0: (2022-01-23)

Updated to TWRP 3.6.0 release built from AOSP-11 branch.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
One question. I've done all the procedure of rooting. Flashed Magisk from your previous TWRP and now have root. To update to the latest TWRP 3.6.0 can I simply flash it from TWRP 3.5.2, or even the .md5 with Odin or must I patch the new image file with Magisk and then flash it from TWRP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
Hello Guys,

So im trying for hours to install TWRP on my Tab A with the T290XXU3CUG4 Version/Kernel.

I get everytime Black sreen, but the Tab is still working.

I can out commands on abd, Sound is there etc.

Is there any solution to fix it, maybe another Kernel ?

ps im Using patched Odin 3B 3.13
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
Could it be a corrrect firmware problem? I did root with this firmware T290XXU3CUG4. Flashed the BL from Android 9, then patched the AP, flashed AP with inserted patched recovery from TWRP , CP, CSC (we want a data reset) all with the patched Odin. The trick is that after flashing the TWRP you need to boot into it once before booting into system.. Do you have the black screen when trying to boot into TWRP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
Can you send me a file for the BL File?

And yes when the Flash is finished, i try to boot in twrp instantly, then it turns instant in the black screen
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
That's the BL from Android 9. After flashing TWRP did you unplug the USB cable to boot into the recovery? You should not try to reboot with the USB cable attached.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
ah thats a nice information!! you are right i left the USB cable in the device.

so i flash : BL: android 9 AP: CG4 CP: CG4 CSC: CG4?

Or should i full flash CG4 and after that the android 9 BL?

and should i restard the device after every flash or not ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
No you can flash the Rom with the BL from Android 9. Restart after the complete flash.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
The bootloader you sent to me, is it for DBT ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
when i flash the BL you sent to me i get Black screen
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
Ok. Take the complete T290XXU3CUG4 (I took the Italian one). Flash everything.

Reboot. You should see the OS screen with everything readable. I presume that you did unlock the bootloader as described here which then had wiped all the data.

Now after flashing the OEM rom, boot again into download mode. Now flash the aboot_vk_T290XXS3ATF1.tar from Odin in the BL slot. In options check reboot. If it reboots normally into a readable screen, you can go on. If not, then you might have one of the SM-T290 tablets with a fault. In this case I don't think you will succeed and must keep the rom as it is.

If you don't get the black screen. You can now go again into download mode and flash in the AP slot the TWRP, don't check reboot in options. Now boot into TWRP. Format the data. Install the multidisabler and finally flash Magisk 24.1,zip and reboot into system. Configure the OS, install Magisk apk and then you should be rooted.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AndreSchw:
okay then my T290 is **** because when i flash the BL i get black screen
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Tbo29:
So you flashed the complete original rom

SM-290_ITV_T290XXU3CUG4_T290OXM3CUG4_T290XXU3CUG4_T290XXU3CUG4.zip and everything works, but then when you flash the BL file from Android 9, after reboot you get a black screen. Yes, a combination of Hard- and Software.

You can also try to flash an Android 9 rom and see if it works.

Read this thread https://xdaforums.com/t/root-for-sm-t290-tab-a-8-0-2019.3965624/

Maybe it can help you.