yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
We see KG Status: Prenormal and at the same time you can install only stock files. I believe this happened after filling TWRP and logging in. You can not do this, immediately after filling the TWRP file, you need to log in to it and install Magisk.zip to patch the kernel and disable lock protection. Only after applying the patch to disable memory encryption and applying Magisk.zip , you can upload to the system. Now you need to flash the current stock firmware to get the KS Status: Checking status and then put TWRP and Root rights again.
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
ok thank you very much. I am trying to find the stock rom but i cant find it anywhere. Can you help me? (Greek model if that helps)
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Judging by the message above, this is firmware T290XXU3BUC1. Greece is part of the OXM multi-region. I'll post this firmware to the Mega service.

2.96 GB file on MEGA

mega.nz
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
my man i really appreciate your help! Thank you very much!

I am downloading now and i will test it.

I tried some other firmwares i found but i receive a fail message

Could you give instructions step by step to do it with the firmware you posted? Damn really stupid here :(
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Hmm ... is this really a T290? I see a bootloader firmware error ...

Can you enter the recovery mode? the version of the recovery is indicated there and this is the same firmware.
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
Nope just the blue screen. Yes it is a T290 100%
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Try to flash again by selecting the CSC part in the CSC window (no HOME_CSC)
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
nothing
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Strange, the PIT file is applied, so the T290 model, but the bootloader is not flashed, although the T290 model did not have a bootloader higher than version 3.

Can you still remember what the firmware was? I posted 10 android firmware, but there are also newer 11 androids.
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
i had 11 my friend!
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Latest firmware 11 android T290XXU3CUG4. Now I will lay it out ... But there are doubts that it will be possible to root the device, since for this you need to flash the bootloader 9 of the android, and not even 10 are sewn ... :(

3.78 GB file on MEGA

mega.nz
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
Man lets make it work like a tablet and to the hell with root :P
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I posted the link to the firmware above ...

Good luck!
[Samsung Galaxy Tab A series Guides, News, & Discus] predatorisback:
You saved me! May the force be with you my man :)

THANK YOU!!!
[Samsung Galaxy Tab A series Guides, News, & Discus] aaytar:
Friends, my t290 wifi tablet has been in kg status prenormal for months. always connected to the internet. oem unlock not showing. How should I go about solving this problem? I had unlocked the bootloader before. There was a charging problem, I turned off the bootloader when I sent it to warranty. I could not open the warranty return. I will be glad if you help me.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
What means "sent it to warranty" and "could not open the warranty return"?
[Samsung Galaxy Tab A series Guides, News, & Discus] aaytar:
I had to recover the bootloader when going to warranty. Then I couldn't open it again.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
If you use the Reply button on a post, it will quote the post to which you are replying.

When your device came back from warranty, had they updated the software? Look in Settings -> About tablet and tell us what firmware version is running.

Read this thread on unlocking bootloader on Samsung Galaxy
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Attachments​

On the screen I see that OEM LOCK: ON (U1), the letter U means that factory unlock is enabled in the developer options. It should be turned off and the device must have a stock firmware, then we can expect a change in the KG Status: Prenormal to Checking ...

I recommend reinstalling the current firmware and resetting the data from the settings ...

It is also recommended to check for an update to communicate with the Samsung server.
[Samsung Galaxy Tab A series Guides, News, & Discus] aaytar:
Guys, I reinstalled the software with Galaxy Sm-T290 tablet Odin, I couldn't open Developer options. I did the updates over wifi. "I can't turn off where it says Oem Lock:On (U1). I couldn't skip the Prenormal error. @Talich52 my friend said it should be Oem Lock Off but it doesn't work. Any suggestions?
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
Since reinstalling the firmware, have you re-enabled Developer Options? Do you have an item under Developer Options "OEM unlocking"? Did you go through the unlocking process?
[Samsung Galaxy Tab A series Guides, News, & Discus] aaytar:
No, I didn't open developer options. Before installing software, oem unlock was hidden. prenormal checking never comes.
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I assume you want to get Root rights? But on the latest releases of the SM-T290 model, this is not possible. To root, you need to install the android loader 9, since protection is enhanced in Android loaders 10 and 11 and it is impossible to install a custom rooted kernel or TWRP recovery. Try flashing the attached android bootloader 9 as part of the AP in ODIN. If there is an error or after that the device will not be able to boot or will boot, but with a black screen without an image, then I'm sorry - it's not fate to get Root rights and then there is no point in fighting with Prenormal...

PS download the file and unpack the zip archive to tar, then use it in ODIN. If there are problems, flash part of the BL from the current firmware...
[Samsung Galaxy Tab A series Guides, News, & Discus] pisiko:
I'm trying to root my device, SM-T290. It's currently on Android 11, can anyone help me? or any tips? I'm going crazy hahaha
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Flash the android bootloader 9 via ODIN as part of the AP or BL posted above in the message and then root the device. You can install TWRP, enter it, apply multidisabler and Magisk. Or just patch the AP part and flash it. Well, in any case, install Magisk.apk to manage Root rights ...
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Guys, i made a thread about this, find it here: Root Instructions For SM-T290 (Samsung Galaxy Tab A8.0 2019)
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
That is actually not true. I have a tablet with Android 11 ROOTED. I also rooted it while it had Android 11.

EDIT: it is true, be assets he calls the bootloader, which indeed needs to be Android 9. Only the TWRP we use already downgrades to Android 9.
[Samsung Galaxy Tab A series Guides, News, & Discus] V0latyle:
Agreed, I'm running the latest CVG3 update on my T290 and had absolutely no issues installing TWRP and rooting via Magisk.
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Looked at the instructions on the link above. In paragraph 9, it is proposed to download the TWRP file and this is the twrp-3.6.1_11-0-T290XXU3CUK4-20220327.tar.md5 file, which includes the aboot.mbn file. Looking at the codes of this file shows that this is the bootloader 9 of the android T290XXS3ATF1. That is, you root Android 11, but use the Android 9 bootloader, which I write about all the time ... Install the Phone Info application, make a screen of the Firmware Information tab. What is the bootloader version?
[Samsung Galaxy Tab A series Guides, News, & Discus] V0latyle:
As posted in the other thread, I'm at T290XXU3CVG3 before TWRP. Will update after flashing.

Update: flashing TWRP does overwrite the bootloader; it's now T290XXS3ATF1.
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Indeed. This is no issue, right?
[Samsung Galaxy Tab A series Guides, News, & Discus] V0latyle:
Nope
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Wait, must you flash this as BL file? I need to flash it because I am going to update to version T290XXS4CWA1, which has upgraded the binary version from 3 to 4. (You know from the other thread what I mean, Talich ;))
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I don't think it matters what Odin slot each file is in. I think Odin has five named slots to cover the most common use case.

In general, I do not think you need a different version of TWRP just because you upgrade your Android. TWRP is the recovery, it should not depend on the rest of the system.

Of course, some changes to the Android will affect TWRP. I have heard that some Android transitions change the partition structure. Other times, they might start using a different filesystem, or different encryption.

TL;DR Don't change TWRP until you see a need.
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Nevermind, downgraded to stock, and thought it was finally time to switch to a custom ROM. Managed to install an official LineageOS 20 ROM on my SM-T290. It also works on SM-T295.
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Now this is good:
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
{Mod edit: Quoted post has been deleted. Oswald Boelcke, Senior Moderator}

Do you have tools like QPST, QFIL, MSMDownload?

Have you found an example of a "raw" and "patch" file? Even if it's for another device, it might give you a clue about what it's supposed to look like. (E.g., maybe the "raw" file is just the image file in BL.tar, and the "patch" file is XML describing the "raw" file.)
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
@LUCID_DREE What happened to your post?
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
@LUCID_DREE I'm not sure it will help you, but I found the claim that the password is fotatest1234:
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
Those files are there for other models of Samsung models on net but for only 15 devices or so. And I have those tools just require those Firehose files(xml and patch file) and Sahara file(programmer file either of .mbn or .elf extension)

It was deleted I don't know why . Let me repost again

Thanks I will try
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
I just saw a notification that my post was deleted due to duplicates
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
You might need to get the aboot.mbn file from the BL file. I also thought that Samsung encrypted those files and it might not be possible to get the aboot.mbn, but not completely sure. I also don't really know how to use the QFIl tool, but I guess you can find that online.
[Samsung Galaxy Tab A series Guides, News, & Discus] huckky:
hello there.

my friend has t290 and his firmware version is T290XXS3ATC1. its android 9.

do you think your patch file would work on that? i don't want to tell him to flash it right away.

thanks in advance.
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
No, Odin fails when it compares the March 9, 2020 recovery binary to my Dec 2019 patched binary.
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Hey mate,

I'm on ASL3 but I can't get your file to flash in Odin. I tried just your file and all 4 with the home_csc but nothing works.

Which version of Odin did you use for it?

Many thanks,

Nathan

*****Edit****

It started to flash, but now I've got the red "only official binaries are allowed" and it says "eMMC write fail: recovery".

I used just the ap and Odin v3.13

Any ideas?
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
I used Odin3_v3.13.1. I flashed with the OEM BL, CP, and HOME_CSC files. My magiskmodpatched.tar file replaced the OEM AP file. I patched the Magisk 20.3 binary. I haven't found the T290XXS3CTA2 OEM filles to play with t hem and Magisk 20.4.
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
you need to unlock the bl.. if it was already unlocked u need to boot device and connect to internet to set kg statua so its not prenormal
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
A this is already done and that's why I'm a little confused about why it fails for me. I'll try again with 13.1 however I think I already tested with this Odin release.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
Try [MENTION=4396505]realbbb[/MENTION]'s patched Odin:

https://xdaforums.com/android/software/patched-odin-3-13-1-t3762572
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Still no dice even with the patched version. I'm glad that it's not of major importance or I'd be going around the bend with it by now lol
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
How did you reboot into download screen with your SM-T290? I ran a Windows PowerShell in administrator mode and sent the command adb reboot download.

Did you run Odin as administrator, also?
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
I went to DL mode via recovery as I'm not too hot on adb. Odin was run in admin mode as it's something I do automatically when flashing my phones to repair the damage I do cooking and testing ROMs lol
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
There have been some claims that it is important to enter Download Mode by starting completely shut down, holding the buttons down (I think Power and Volume Down), and connecting the USB cable to the PC just after pushing the buttons on the tablet.
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Well I completely mastered ADB and now I can professionally use it to boot into DL mode lol

It still fails and says 'only official binaries'

Maybe a daft question, but are you sure you uploaded the correct file?

I root every phone I have so I'm sure that I'm not missing anything.

**Edit**

Reboot download takes me to the nice blue screen but I'm still being told on the tablet screen that it's the recovery image that's throwing the error.

---------- Post added at 07:48 ---------- Previous post was at 07:38 ----------

I tried that combo many times when I first got the tablet and it never worked. For unlocking the BL I went through the recovery and then chose reboot bootloader.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I don't understand your point about how you unlocked the bootloader.

I'm changing my story about how you should get into download mode: With the tablet shut down, Odin running, and the cable plugged into the PC, hold all three buttons on the tablet -- Power, Volume Up, Volume Down -- and plug the other end of the cable into the tablet. Let go of the buttons when the tablet shows any sign of responding.

I don't understand why it makes a difference *how* you get to the download screen. I know I've read posts claiming that it does.

I also think you should make your own patched and padded copies of boot.img and recovery.img so you can be sure they match the firmware and Magisk you are using.

When I finally succeeded, I *still* got an error ("SECURE CHECK FAIL: vbmeta") on the tablet. Odin was happy. (It might be significant that the AP.tar only contained three files. Maybe the download completes and Odin reports success before the tablet reports an error.)

Then you have to go directly from the download mode to recovery mode for the data wipe.

Then you have to manage the delicate dance of booting *toward* recovery, releasing the buttons at just the right time that Magisk actually boots. You have to set up the tablet, including an internet connection. The first sign that it has all worked is when you run Magisk Manager and it says it needs to do something.

Good luck.
[Samsung Galaxy Tab A series Guides, News, & Discus] tiago156:
I'm getting this screen when I try to flash my T295,

is it becouse of the OEM LOCK: ON? Is it OFF on someone tablet (T295 or 290)?
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
On my SM-T290, Current binary: Custom, OEM LOCK: OFF

In Developer Options, OEM unlocking is ON. At one time it was ON and grayed out. Now it's ON, but not grayed out.

My guess is that you have not unlocked your bootloader. I have read that you have to enable unlocking in Developer Options, shut down, boot to unlock screen, say yes and wait for the wipe, reboot to Android, and set up enough for it to decide to honor the unlock. I don't know what you can do (or not do) that lets it decide not to honor the unlock. Read Wu's Magisk installation instructions again, maybe he explains.
[Samsung Galaxy Tab A series Guides, News, & Discus] tiago156:
Found a way to unlock the bootloader, I did several tries and the timing of pressing the VOL+/VOL- and connecting the USB cable was the issue, now I Have the bootloader unlocked!

Buuut,not I'm getting this error trying to flash with odin:

and on Odin I got PASS: :confused:

View attachment 5024437

Any tips?
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
Bad news. i was rooted as described above, running the December 2019 firmware, and installed with the modified magisk modified and hex edited recovery image. Someone asked if my patch would work on their friend's SM-T290 running the March 2020 firmware. I had resisted the upgrade, which states it will not allow you to revert back to an earlier firmware version. .It doesn't. So, I'm now on unrooted T290UUES3ATC1. kid firmware., I plan to replace it with the Canadian version of T290XXS3ATC2, but I doubt I'll have any better success rooting it..

The Magisk 20.4 magisk_patched.tar recovery failed to load. A stripped tar file containing just the boot.img, recovery..img, and vbdata.img filesfailed to load. I made hex edited boot.img and recover.img files to match the original stock firmware img files. That didn't load, either.
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
I try it :/

Iae Dude, I'm also in a difficult fight to get this tab rooted, kkkk I managed to install this parch file, but I didn't get root, any tips of what it might be?
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
good news !!! I got root access, basically I followed your previous instructions, to install everything together by exchanging only the AP file for yours. I had to install a new Stock to ensure it was compatible.:highfive:
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
After installing Magisk:

(Powering up normally) → (System with NO Magisk)

(OEM Recovery Key Combo) → (Splash screen) → (Release all buttons) → (System with Magisk)

(OEM Recovery Key Combo) → (Splash screen) → (Keep pressing volume up) → (Actual recovery)

If you just flash 3 AP* files (boot, recovery, vbmeta) in ODIN, there is a chance you will lose some space on your tablet. You should replace the 3 Magisk_modified files in the original AP*.md5 file. Uncheck reboot in ODIN. After flash, reboot to recovery and do a data wipe. Recovery from ODIN: press and hold vol dn + pwr. When screen goes off, quickly press and hold vol up until you get into recovery.
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
i appreciate your help
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
Already got aboot.mbn from bl file of t290's firmware. its in compressed format aboot.mbn.lz4 which when extracted using lz4 cmd software for windows available on github gives us the original aboot.mbn file
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
also any password protected file named fota.zip in t290's firmware has password fotatest1234 and this password is working as of today and i can confirm it.
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Wait, is it possible to extract the bootloader then? I already was searching for a way to patch the BL file so it does not give a warning screen.
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
You are expert sir. Pls help from here now. I was able to get this far in my research from help from one other fellow
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
Sorry, but I don't know everything. I don't really heard about EDL, so don't know. I am sure you can find it online. I might be able to help you at some steps. Also, can't you restore the backup on another device? Where is it stored?
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
Thank you for reliving me your words that you can help me at some steps.🙏🏾

I have no other Samsung device with me. Will the twrp data partition backup work on any other android device with twrp ? Will it work on any android version?

I have stored the backup on my computer for safe keeping🙏🏾. (deleted)

Also, about edl ,it's nothing special, it's just that the normal download mode which you use to flash images on this tablet is the (SBL) secondary bootloader's implementation and is restricted somewhat while the edl mode is the (PBL)primary bootloader which is fully unrestricted and can override all restrictions and force flash images without any restriction. The only difference is that for accessing/intiating SBL we use combo key involving volume and power buttons while for Accessing the PBL (unrestricted bootloader- you can even downgrade binary of Samsung with it) involves shorting the 2 test points ( behind the tablet) and while keeping it , insert USB connected to computer, which is present in all devices , then you will get a special never before have port on computer name QHSUSB_BULK , install Qualcomm HS USB downloader 9008 driver and you are good to go.

These pictures are the backside of the Samsung t290 tablet after opening its back cover with a prying tool. There were no screws to be removed only a prying tool to separate the back cover from front part
[Samsung Galaxy Tab A series Guides, News, & Discus] V0latyle:
If you read and follow the Forum Rules, you'd understand why:

You've spammed the same question across multiple different threads, which is a direct violation of this rule.

I have sent you a PM. I expect you to read it.
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
Thank you I understand it now, I have not much experience with xda so ..... Sorry for this🙏🏾 (deleted)
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I think you are wasting your time pursuing EDL mode. Googling "edl samsung name-of-the-program-to-download-in-edl-mode" led me to articles, some on XDA, saying Samsung once again crippled a capability.

If what you really want is to recover data, why not focus on that? I don't know how you were able to make this backup, but look into extracting files from it.

If the backup is an image of the data

partition, you can mount it under Linux.
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
I think he made a backup of the data and/or internal storage partition, which is .ext.004 as extension from backups in TWRP. I guess you can mount those files in Linux? Also don't know whether he has Linux, otherwise there are some tools on Windows to do it I think.
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
actually this ia a twrp nandroid backup and it contains data.img.0001.md5 ...002...003 like this and so on , so only after restoring this data partition , i can see those with just some img viewer software like those on linux it will be not helpful for me. And thankyou , i appreciate you for taking time to research for my cause. (deleted)🙏
[Samsung Galaxy Tab A series Guides, News, & Discus] Minionguyjpro:
bump