yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] themace51:
Hey

I am in the same boat, I have spent a lot of time trying to flash the t290, but like above, i get the dreaded black screen.

Can not even use Magisk to root the rom either. Just does not work.

Unless someone finds a solution to the blank screen, I am afraid there is nothing that can be done :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ravijol1:
i managed to install twrp, but i cannot see anything in the storage. it's just empty. any idea why? @Magendanz
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
That's just because of file-based encryption (FBE), which will make files and folders in user data look like gibberish. You can install Multidisabler, which will allow you to reformat user data so that it's visible in TWRP, but that breaks login security on the T290. Instead, I link to a special version of the Multidisabler from the OP that doesn't disable FBE. You won't be able to read files and folders from within TWRP, but at least you can secure access to the device.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Netrambler:
Not sure if my problem is the same as others' or different, but after following the instructions as best as I understood them, I seem to have gotten my brand new T290 (International Model) into a bad state where it will only boot to a faint black screen. I cannot figure out how to get back to the Download screen to try and fix it. (Exact model on box is SM-T290N7KAXAR)

I unlocked the Bootloader, and brought the device to the "Download" page.

I used Odin 3.14.4 to install the current recommended twrp-3.6.0_11-0-T290XXU3CUG4-20220123.img from the first message in this thread to "AP", per the instructions. Odin claimed the upload was a PASS.

At this point, I'm stuck. I can't power the device off; it always restarts when I try. I try pressing and holding "Power & Vol Up" (which the instructions indicate should start TWRP recovery) during a restart, but this only causes the device to power cycle off and back on repeatedly as long as I hold the buttons, always returning to a faintly illuminated black screen.

I'd like to get this back into a working state. Any ideas?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ravijol1:
try re-flashing stock firmware and then flashing twrp-3.6.0_11-0-T290XXU3CUG4-20220123.tar.md5 instead of .img
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Netrambler:
Thank you. Could you please point me to some instructions on how to do this?

(Clarification: I've found firmware to try, what I need are the instructions on how to get the device to let me upload to it, when it's in this black screen state)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ravijol1:
try to connect to adb and type in the command adb reboot download. then connect with odin and flash all files from the stock firmware you downloaded. (edit: have you tried to press vol up and vol down while booting?)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Netrambler:
Thank you. Believe I'm making progress - just slowly.

> try to connect to adb

I plugged my device into my Windows computer. On the Windows computer, I downloaded the Android platform tools per https://www.xda-developers.com/install-adb-windows-macos-linux/, installed it, and from the command line, I typed "adb reboot download". It told me "error: no devices/emulators found". BUT! On to the next thing you told me.

> have you tried to press vol up and vol down while booting

Just tried this. Here is what happens.

I pressed and held Power about 8 seconds, until the tablet buzzed and the screen went dark. What happened next, happened very quickly.

I pressed and held both volume buttons together. A moment later, the screen lights up faintly for just a fraction of a second.

The device buzzes again, goes dark again for just a moment, and then the screen lights faintly up a second time, and this time stays that way, even as I continue holding the buttons.

After this, I tried the adb thing again. Got a different result!

error: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.

I can't check for a confirmation dialog since the screen is not showing me anything, so I tried the kill-server thing, then reboot download... and that brought me back to the device unauthorized error again.

If the dialog is on the screen but just not visible, perhaps if I knew approximately where to tap on the screen to authorize...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ravijol1:
ok i will do some research until tomorrow. add me on discord ravijol1#8825
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Netrambler:
ravijol1 helped me solve my problem! The tablet was working, I just couldn't see anything. Here were the things that I had to do.

- Boot the device into recovery mode. This meant holding power for about 8 seconds, and when the device restarted, holding Power and Vol Up together. Hold these together until the tablet had buzzed the 4th time, and let go after about 2 seconds after that. (Maybe I could've gotten there after 2 buzzes, 4 was reliable for me). This site's reference for Recovery mode was helpful: https://www.hardreset.info/devices/samsung/samsung-galaxy-tab-a-80-lte-2019/recovery-mode/

- Tap Vol Down once, then tap Power, to engage Bootloader mode. Wait until device disconnected and reconnected

- Use Odin3 to upload replacement stock firmware. This took about 4 minutes.

- Breath a deep sigh of relief

Thank you again ravijol1!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Update to v3.6.1 now posted:

Downloads:

twrp-3.6.1_11-0-T290XXU3CUK4-20220327.tar.md5

twrp-3.6.1_11-0-T290XXU3CUK4-20220327.img

Change Log:

v3.6.1_11-0: (2022-03-27)

Updated to TWRP 3.6.1 release built from AOSP-11 branch.

Updated to T290XXU3CUK4 OEM stock kernel.

Using FFS MTP so that custom kernel builds are no longer necessary.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
FYI

The TWRP update link leads to a "sorry, no longer available" link. The Odin tarball link actually points to the TWRP download. That's the one I want, so no problem for me, but might be problematic for those wanting the Odin version.

The TWRP version itself installs successfully and is working. Many thanks!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Thanks! The links should be fixed now.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] billye.perrin:
Hi,

i don't know how new releases will be tested.

Because they don't work anymore.

I tried first time on a T290 with the 3.6.1 Release and i got the same problem as Netrambler. There is only a black screen.

Only thing you can do is go back to original.

Is it possible to get older Versions of TWRP for T290, to checkout if one of them still works? (The 3.4.0 also did not work)

You should add a warning that the current version not works for new tablets.

Regards
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
My testing is fairly limited: I do a clean install of the base OEM firmware (T290XXU3CUK4, in this case) in Odin, reboot immediately to Download Mode, install the TWRP tarball, and then reboot to recovery.

Yes, those are all archived on Android File Host. The link is in the OP.

Well, it installed and booted fine for me again just now. There is an issue with the latest bootloader preventing Odin from flashing unsigned system images, but that isn't affecting the TWRP release. (In fact, the workaround is to install TWRP in Odin and then install the custom ROM using the .zip file from there.)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] billye.perrin:
sry did not saw that :)

than samsung implemented some new security feastures.

if i try to upload one of the TWRP images with odin, i got the error "SECURE CHECK FAIL: vbmeta" and the screens shows nothing after rebooting.

oem lock: off

kg status: checking

so until the new samsung bull**** security is broken, its not possible anymore to root that device.

never again samsung
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Are you sure you haven't triggered their VaultKeeper security "feature"? When you go into Developer Options, do you see that OEM Unlocking is turned on? (It can be grayed out, but it should be visible.)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] billye.perrin:
since i flashed the stock image from frija, i didn's saw oem in the developper options anymore. also the howtos for getting the option back (change date) did not work. so maybe oem lok is patched out in the frija images?

and if its smart enough to count real 7 days, i'm really not willing to invest weeks to get that running.

edit: just take a look and the options is visible, activated and greyed out in dev options

so thats also not the problem

edi2: maybe connetion to internet brings that option back. and mostly i looked in the dev ops before connectingto the internet, maybe thats the reason why i not saw it the last times.

but because of the fact that i needed the internet to get the "kg status" from prenormal (or whatever) back to check, also the oem option should be back in the dev ops. but i did not used the dev ops oftent, i'm only rebootet to download state and checked if kg status is checking.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] V0latyle:
Edit: I figured out what I was doing wrong. Have to flash recovery right after updating without letting the system boot.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nima2005com:
Can you make a twrp for T295 too?

Becuase the only difference is T290 dosnt have sim slot but the T295 does have that

And i think having or not having simslot dosnt matter for twrp😅

Thank you so much for making that rom and twrp for these devices🙏🏻
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] HyruleanKnight:
Hello there

My device is the LTE version, SM-T295. Could you make one for it too?

Cheers
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Dharmtej:
does this work with SM-t295 because they sm-t290 and t295 have the same hardware do you think it will work
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Dharmtej:
Can you make for sm-t295 doss this

Work for sm-t295
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] :
I have this model, too. And if TWRP 3.6.1.tar.md5 shared in this post is flushed to Odin3, Secure Check Fail : vbmeta appears on the machine and cannot boot to TWRP. How do you solve it? And CSC code is KOO.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] captaincrook:
This helped me big time.

Following the steps, I get my device flashed to the proper release. I completed setup and kept ADB on and authorizations are approved as a just in case. Only after I try to flash TWRP does the screen blank out. The flashing completes without error, reboots, and I press the magic combo. I can't see anything after the device reboots, but ADB does tell me the device is in Recovery.

I am able to bounce around here, into stock with a "normal" restart, and between Recovery and Stock I can boot blindly into bootloader for download with Odin.

However, the screen just doesn't show anything. I get a backlight, but the display is otherwise blank.

Not sure how else I can help, but the device seems to take everything with the exception of any display going on. By virtue of ADB telling me I'm in recovery, I'm assuming everything is going fine and I just can't see it.

EDIT: I see another set of Russian instructions that suggests flashing the TWRP.tar.md5 into BL and not AP, but I'm not willing to risk it without further information.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
Since august we have a new stock-firmware with a new bootloader (CVG3).

@Magendanz : Is it possible for you to create a new TWRP based on this release ?

Furthermore it's a U3 bootloader, so it should be - theoretically - possible ;-)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Yes, but it might be a while before I can get it posted. Had my son's wedding this weekend and we're going into the final few weeks of my reelection campaign to the state legislature.

Also, I need to wait for Samsung to post the kernel source for T290XXU3CVG3. I just submitted the request.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
No worries ... take your time und good luck for the elections :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zolotiyeruki:
EDIT: Answer is "no"--I apparently had a bad USB cable. Swapping cables, and I was able to flash TWRP. Now I just have to perform the necessary incantation to get it to boot into TWRP the first time...

EDIT2: I loaded the CUK firmware via odin, rebooted to download, and tried to load TWRP in to AP via Odin, only to get the "SECURE CHECK FAIL : vbmeta" message. Where do I go from here?

EDIT3: Sounds like I can ignore that error. All good now!

I have a newbie question: Must the tablet be on the CUK firmware in order to use the TWRP in the OP? My tablet is on the CVG build, and when I try to flash the twrp .tar.md5 file to AP in Odin, all I see is this:

<ID:0/005> Odin engine v(ID:3.1401)..
<ID:0/005> File analysis..
<ID:0/005> Total Binary size: 66 M
<ID:0/005> SetupConnection..
<OSM> All threads completed. (succeed 0 / failed 1)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Esamy:
Hi so i can use this when i try to install twrp in my galaxy tab a 8.0 2019 right?

I will not use odin i will use another phone as an ADB command shell and install this using it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] V0latyle:
Samsung devices do not use fastboot mode like many other Android devices. The only way to flash the device is with Odin.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Hi, can you upgrade the bootloader to Android 11 if this is possible? Because there is an issue with charging when it is off. It will turn on again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] V0latyle:
I believe this may not be possible; the newer Android 10 and 11 bootloaders prevent TWRP from loading and give a "Secure boot Fail" message. The bootloader itself would have to be modified, unless someone figures out some other way to disable this security function, and since the bootloader is proprietary code, it's not very likely.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Android 10 and 11 work fine with this TWRP build, as long as you roll back aboot.mbn and vaultkeeper.mbn in the bootloader. You also need to disable Android Verified Boot 2.0 by flashing the replacement vbmeta.img and signing the recovery image with the AVB hash footer.

This is all done for you in my Odin tarball.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] V0latyle:
I'm rather confused, then. I'm not very technically knowledgeable on the ways of Samsung, as Pixels are more my thing. I did notice that after flashing TWRP, the bootloader has been rolled back to the old Android 9 version - or at least that's what it seems like.

Is Multidisabler still required? Or is a data wipe all that is needed after flashing TWRP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Yes, those two components of the bootloader are rolled back to the Android 9 version.

Yes, you'll still need to flash Multidisabler and wipe data, following the instructions on the OP. IIRC, I created a special version of Multidisable for this device that didn't remove encryption, however, because it broke the lock screen security.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
So, it will stay on A9 bootloader?

And, is there any way to fix the charging issue? It turns on again while you charge it when it is off.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Two of the 17 bootloader components will be rolled back to A9.

I've been unable to get Samsung's Low Power Mode (lpm) working on Android 11, and so my workaround is to perform a normal boot, just like iPhone. The alternative is a system hang, which is what happens on the AOSP 11 and LineageOS 18.1 GSIs without my mod.

Remember, this tablet is over three years old, so it's not really getting much of my attention these days. You can currently get a Galaxy Tab A7 Lite for $99 on Amazon, and that will be getting Android 13.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
That is true, but it still works not that bad for me, for example.

May i ask you 1 more thing? Could you upgrade TWRP for this tablet to 3.6.2? As a final release of TWRP for this tablet.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Diepie:
It seems that everyone is having problem after the last bootloader update, Samsung has done a thing that make flashing TWRP+custom roms difficult thing, I have a Samsung Tab A [T585] and in the last security update they did upgrade the bootloader to U7, after that all the device owners faced a problem with TWRP, after flashing it, it reboots so many times, and in the best case it will work without any touch responsive

I've tried using UK rom for the device and surprisingly I faced the exact same problem, A lot of reboots, and after booting into the system the touch doesn't respond at all!!, notice that it has the exact same bootloader version, So I guess the issue isn't TWRP at all
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Yeah, i tried to flash LineageOS 19.1 using a GSI rom, but it didn't work and i was stuck in a TWRP bootloop. I flashed stock ROM with Odin, and it was working again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Here's a 3.7.0 build...

Downloads:

twrp-3.7.0_11-0-T290XXU3CVG3-20221120.tar.md5

twrp-3.7.0_11-0-T290XXU3CVG3-20221120.img

Change Log:

v3.7.0_11-0: (2022-11-20)

Updated to TWRP 3.7.0 release built from AOSP-11 branch.

Updated to T290XXU3CVG3 OEM stock kernel.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Thank you!!! Will upgrade within the afternoon. I didn't know there was a 3.7.0 build or version of TWRP... Can't you update the thread to be this version?

EDIT: IT IS.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Heeni:
I haven't tested everything, but the new TWRP installed easily and appears to be working OK. (y)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Good.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vietan:
I'm using P585Y. Which is the one with lte and Spen.

So far, everything i've tried fail to enter TWRP, just keep getting black screen after flash twrp with odin

Every version of twrp i have tried to flash fail.

I've tried to use patched odin, but still, black screen.

When i flash the stock rom, it was working just fine.

I don't know what i did wrong, and still find the solution for this.

Please, if anyone has a way to install twrp, let me know
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I also dont know, more people had this issue. Mine didn't. Works fine with TWRP 3.7.0.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I have successfully installed TWRP v3.7.0! I was also able to flash Multidisabler and Magisk. I will update my root guide to have the latest TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
@Magendanz With any luck, do you know a way to charge while it is powered off? It will power on when you charge it...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Diepie:
Does the new TWRP version fixed bootloop problem before entering recovery, does it also fixed the touch problem? if yes then we defenitly need ànother more update for our T585 and T580 too
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vietan:
New update: I've tried to use ADB to control my twrp when the screen gone black. I've found something weird. When the twrp is on, the device show up my PC but it show nothing, it doesn't show any data and i can't acess or copy anything to my device when running twrp. I found this odd. Still doesn't know why, and how to use twrp for this device.

This tablet gave me a bad headache
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
The P585Y is a completly different device ! As far as I know a tablet with a 10.1" display from 2016, delivered with android 6.x, right ?

In this thread we are talking about the T290, a device from 2019 with a 8" display ... so these are completly different devices.

Don't use the recovery with your device, the risk to produce a brick seems to be very high .. ;)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vietan:
I've install twrp version from twrp website nà select my device. Still, nothing work. It seem pretty hopeless. I don't worry about bricking my device, it pretty old by now. I just like to do stuff with it before selling it away
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
I see .. but I don't think that you'll reach your goal with this recovery ;)

Afaik there isn't any recovery for your device, at least a short look on the twrp website didn't show any result .. maybe your device is 'similiar' to the T585 (gtaxllte) .. so better ask in a thread for this device..
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vietan:
It is. I already see through the t585 group once. But couldn't find it anymore. Please quote me to the thread of t585
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
Are you kidding ?

A shot search in this forum with 'P585' led my at least to this thread ... good luck :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Even better. TWRP 3.7.0 for SM-P585Y: https://dl.twrp.me/gtanotexllte/
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vietan:
I've tried this and many version before it. Still get black screen after flash twrp.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Weird...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jim in CA:
I used the 3.7.0_11-1 TWRP image and Andy Yan's 19.1 GSI image to update my SM-T290 from 18.1 to 19.1, and so far so good.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sandesh rai0001:
Does this twrp work on sm-t295
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Don't think it works (or atleast not fully, but DONT try to install this on your SM-T295). Try the TWRP from this thread: https://xdaforums.com/t/rom-twrp-sm-t290-sm-t295-discussions-help-thread.4031223/

You may need to scroll a bit true a few pages, but at a certain point you'll find it.

NOT the one with SM-T290. Look good out for SM-T295.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
Someone who can help me please? I installed the normal TWRP I put the multidisable everything is fine up to there but when I put system reboot it stays in a loop and does not start the system I am scared, I think I deleted the operating system Here a picture of the system reboot and the storage of the OS, If you see in the image, does it weigh little to be the system?.It's my first time installing TWRP.Someone who can help me I'm desperate I already saw many tutorials 😢😢
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Just reflash the stock firmware. It will write the new data to the system partition. After this, just install everything and you're good to go.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
Is there a simpler way for you to explain to me? Is there anyone a yt video? Or a blog? Because I'm new to this and I speak Spanish and it's a bit difficult for me to understand the terms that are in English. it would be a great help please
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Try that.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
if i do all that it will delete ell recovery twrp
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Yes. But after that, you can just reflash TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
One last question, I think. When installing twrp, the multidisable file is so that it does not go back to the factory recovery? After that, I delete the factory data and restart the system, so are the steps, right?