yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
I should note my builds are all from source and not a GSI.

Currently I am building the kernel from source. Wi-Fi didn't work because they didn't add the prima driver (which seems to be common, the logic is that they don't build their own Wi-Fi driver, so they direct you to CAF.) So I have it working, albeit as a kernel module, because building it in broke everything.

MTP is totally broken on my kernel though. Not sure what's the best route to get around this.

In the context of a custom recovery, however, it shouldn't matter if Wi-Fi is working or not. MTP on the other hand...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
Thanks for explanation @lifehackerhansol , so I'm at least up to date with GSI-skills :)

On the other side, this didn't help me in my current situation if it's necessary to have TWRP for your rom or even an GSI .. I read in another thread that even for installing a GSI a working TWRP is mandatory (to be able to flash multidisabler and get rid of gatekeeper ...)

So atm end of the game .. I have to stay on stock :-(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
I can try to repackage LineageOS recovery as a tar. I don't really know how to do it though so it may take a bit.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
That would be great (y)

Although I'm not convinced that this will work because of the fractious bootloader ...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
That's just a matter of swapping out f_mtp for f_mtp_samsung in /drivers/usb/gadget/function/Make.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
Hmm, I'm not too certain how to create a proper vbmeta image from this. Something to think about later on.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] antisomnic:
So I've installed TWRP and now want to install multidisabler to keep TWRP from being overwritten. The update zip does not show up in my file system. Do I need to have an external SD card to do it?

Sorry I've read several sets of directions and they're all a little different.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
You can either use an external SD or adb sideload. Sideloading is probably the better option of the bunch.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] antisomnic:
i just found an old 1gb micro SD
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] captaincrook:
I didn't get far. I am just presuming there were some SW changes somewhere and I'm screwed for the most part. Bootloader unlocked but it's otherwise useless for me since flashing anything to get TWRP is met with a black screen.

Kind of bummed about it thb.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 2faraway2:
At least you're not alone .. ;)

You can follow the latest tries (with LOS recovery) in this thread
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
I must be dense or something. Cant find the .tar file to use with Odin...

I see a .img and a .tar.md5
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
Figured it out Used md5 file Odin indicated success, but TWRP didnt load
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] p3nguin-kun:
twrp for binary 5 security patch pls
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Sorry, I don't know what the "binary 5" security patch is. Can you please elaborate?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I see that there is no level 5 software security patch, although there is one from 4 in China. I think this person means to update the TWRP to have support for the latest software/firmware, but it is not possible to have a bootloader with Android 9, so only the software will be updated, I think...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Yes, I'm not aware of anyone who has been able to build custom ROMs for SM-T290 with the new bootloader. And frankly, this device is so old now that I'm not inclined to invest the time to explore other workarounds.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
What? Do you think it is very old? I know devices from 2015, which have Android 5. The newest version is 13, but this device e has 11! That's not really that old.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
I'm currently maintaining unofficial TWRP builds and custom ROMS for 6 models of the Galaxy Tab...and this one is the oldest. Sorry!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
Bootloader unlocked, USB debuggin,g have used Odin for years, "Success", but no TWRP.

Suggestions?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Are you on the latest firmware? And does TWRP not load on your device? Do you get a black screen with TWRP? If the last one is the case, you may have gotten the device shipped with Android 10. This means that this TWRP will likely not work on it, but we are looking for a fix.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
Latest Android 11, just updated. When booting to recovery, goes to android recovery. Apparently TWRP never installs...Thanks.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
You must not let the device boot normally after flashing TWRP. On the first reboot after flash, you must boot into TWRP and then flash Multidisabler and Magisk. If you don't do this the first reboot after flashing, it will activate Vaultkeeper and roll back to the default recovery, and you need to redo it completely again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] tennessee_titan:
That worked. Thanks again
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
No problem!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] p3nguin-kun:
TWRP for SM-T295 latest firmware pls
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] captaincrook:
A little late here, but thanks for the heads up. I'll be following both threads for progress. 🥷
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LedTV1:
Hi. any idea to resolve problem with black sreen after flash aboot?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Hello @Magendanz, I have another question:

Samsung is releasing the new T290XXS4CWA1 firmware to multiple countries. This update upgrades the binary version from 3 to 4. My question is, will I be able to install TWRP on this firmware, or will it be lost forever (due to the fact that you can't downgrade the bootloader/binary version)?

EDIT: I think I can just use the BL file for Android 9, and update the other parts???
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
According to Magisk head dev topjohnwu:

https://twitter.com/i/web/status/1320361497466339329

SM-T290 (and by definition SM-T295) falls into the category of "Samsung don't care about you and rejects anything custom, ever."

We're lucky to even have a bootloader that actually functions according to specifications, at the loss of some newer revision models that cannot boot the older bootloader.

As you have noticed, Samsung have now released a firmware update that brings along a bootloader uprev, and, yes, that will block flashing our "truly unlockable" bootloader forever. Feel free to flash everything except the aboot, but for official LineageOS I will be enforcing T290XXU3CVG3. There's no point updating the rest of it, Samsung isn't going to give us Android 12, and our current stuff is working perfectly fine (at least, issues are ones I can fix via software.)

It'll be disappointing, infuriating even, to some users out there, but there is nothing we can do about it. Feel free to shoot Samsung an email, maybe, but what are the odds they'd lower the security of their device?

May this be a warning to users to never update their firmware until developers learn more about it...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Yes, I was also thinking about not ever updating the bootloader again. Do you know what is new in the latest update??? Because it for many firmware says there is a 'new/better feature':
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
Unsure. I didn't even bother looking at it. I spent maybe like half an hour of my life, total, on the actual stock ROM, and went straight into porting LineageOS lol.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
By the way, doesn't it work to just flash all the stuff except the BL or flash the one from Android 9 instead? That way you should be able to install it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lifehackerhansol:
Generally, you want to flash BL. We just don't want to flash specifically aboot.

Which is easily done by removing aboot.mbn.lz4 and vaultkeeper.mbn.lz4 from the tar. I'm just too lazy to look at it, really.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Is it possible to update to the kernel of T290XXSC4WA1? It might not be possible, because it comes with a new bootloader version which WILL NOT WORK with custom stuff. But, isn't the kernel something apart from the bootloader???
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Also nice, there's now an official version of LineageOS 20 for this device!

Source: https://wiki.lineageos.org/devices/gtowifi/ and https://download.lineageos.org/gtowifi
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Although I think Magendanz will stop the development for this recovery (it sounded like so), isn't there someone who want to make it official and continue development? There are still somewhat devices from atleast 2 years old still getting development. And also, if you can make it better and upgrade, why not?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
I'd always wanted to make mine official, but was leery about the time commitment of being a maintainer for so many devices. If someone is willing to take that on, I'll do my best to support.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Sounds nice. I want to build it, I only don't completely know how to do it... Although it's not that hard I think.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nima2005com:
could you make a one for t-295 ? because it looks like every thing is same but t295 got simcard
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I heard this one also works on the SM-T295 model. Someone from another post told me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
No, I only build for devices that I have. Even basic smoke testing is a hassle without the hardware in hand.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] aboamjad:
There is no update for T290XXS4CWC1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
That is logic, because you CANNOT use any custom stuff on that version. Sorry if you don't know, but installing any custom stuff will not work anymore on a device with that bootloader version, and downgrading is currently not possible.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
My bad luck that i didnt know that u4 bootloader update of sm t290 had prohibited custom images, but what has happened has happened and i have already upgraded using the update on a non backed up device. So pls i beg to ask for a u4 compatible recovery custom twrp image to recover my study related data pls.

BTW,Where did you get the info that s4 bootloaders now dont support custom bootloader ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Multiple sources, for example on the LineageOS 20 ROM thread for this device. They put it completely at the top as warning:

[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] LUCID_DREE:
Oh god, I am dead now with no options
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Probably.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Pls don't say this help me , I beg you. It's my career at stake
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
BIG ADVANCEMENT IF ANY LEARNED MAN CAN HELP: Any password protected file named fota.zip in sm-t290's firmware has password fotatest1234 and this password is working as of today and i can confirm it. this fota.zip i guess as i interpreted on looking through it contains sensitive details about signing key and private key related data. also it contains i guess meta files required to use to force-flash in edl mode though qualcomm usb downloader 9008 got by shorting test pins at the back. if someone who understands those files , then please derive the patch, xml and programmer files using ota.zip, aboot.mbn & pit files already found in firmware for using in the qpst tool which if works will free us even from future attacks like these as no ota update can override edl mode/qpst flash as it uses force-flashes. then we can downgrade/upgrade from/to any binary version. Hoping that someone or @Magendanz helps me as my future career is at stake. I beg everyone. Help me and i will appreciate you for liife and bless your whole family
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Will this work for sm t290 ? is it reliable , this is a big claim on this website that it has paid downgrade firmware for u4 from android 11 to 10. for sm t295:

https://easy-firmware.com/index.php?a=downloads&b=folder&id=85194

Ther are other amazing claims on this website related to SM-T290 and SM-T295 tablets which are both brothers.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Well, they have seperate firmware and the SM-T295 has LTE. It might work, but I am afraid it might not work and brick your device, even though the differences between the 2 are very small.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
oo, thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
But, what are you going to do then? I will tell you that the chances to brick it are very high, but now you'd come far with the EDL mode that might be a better option to try first. Also, this is getting a bit off topic I think. Maybe it is better to open a new thread that is about the whole thing.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
Thanks, i will have patience and not try to worsen my condition further. Already i did by updating to u4 binary on t290. Got the biggest lesson that not every upgrade is an upgrade , it might be a downgrade too.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
I need help please.I have several errors on my tablet, the origin I am not sure. but the wifi does not work, the rotation of the device, no audio comes out of the speakers.What solution can I give you, I wanted to reset it but when I try to enter the recovery nothing comes out. neither the factory recovery nor the twrp recovery.Do I have to reinstall the rom?.Before all this happened I installed a magisk module called onflush. or the magisk update?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Probably try to reflash TWRP, and which ROM is that and is it on an SM-T290?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
the rom is the latest update of sm-t290 .do you speak Spanish?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
I am Dutch, I only speak Dutch and English. Do you mean that you are on the latest OneUI (stock) ROM for this device?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
Yes, I have the rom apart, do you think that if I install the rom again, will it be fixed? Or what do I have to do to fix it?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Is is the version with bootloader version 4? That currently won't support custom stuff, because Samsung disallowed it in the new bootloader and it can't be downgraded. You can still l reinstall the latest ROM, but I don't know whether this is your case. Check in Download mode what the bootloader version is and give it to me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
The truth is that I got lost in your explanation, I only understood the last thing, I think.Could you explain it a little more simply, for someone who is new to this?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
are you busy?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
There is a bootloader which makes the OS bookable, and the bootloader can be updated. On version 3 of the bootloader and lower, you can flash custom things like a custom recovery like TWRP. And now that you are on the latest One UI ROM, they updated the bootloader version. In version 4 of the bootloader, it is now impossible to flash those custom things. However, you might still be able to flash the stock ROM to get the stock recovery back.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
Do I install the same ROM with which I had installed the twrp?.Do you think something will happen to it if I install this ROM. Will the errors it has be fixed?... but those errors are not because I updated the system, it is still the same with which I installed the twrp.

Samsung Galaxy Tab A 8.0 (SM-T290) - ROM - T290XXU3CVG3 firmware

Fast download latest Samsung Galaxy Tab A 8.0 firmware SM-T290 from Romania with T290XXU3CVG3 and Android version 11

www.sammobile.com
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
That won't work, the bootloader will stay at version 4 and there is currently nothing to get around it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
Then what do I do? 😟
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Unfortunately, you now can only stay on the stock ROM, and flash newer stock firmware with ODIN if needed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
But how do I know if I have version 4 that you say I have?.suddenly it is not version 4 and it is a lower one.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Well, I am sure because of 2 reasons:

1. That error you get tells "Binary 4 > 3", meaning you are trying to downgrade bootloader version 4 to 3.

2. You told me the version of your tablet, which includes 'S4' in the version ID and that tells the bootloader version.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] klisman123:
I will do that 👍

I think so far I'm a little confused about the version 4 bootloader, about its advantages and disadvantages. You will not have a page where I can read about the bootloader version 4.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
i'm facing black screen issue after flashing twrp. can see device in recovery mode through adb but nothings working. please tell a workaround
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
You don't give any details. I'll try to guess - the SM-T290 device is from the latest releases. They are characterized by either protection or the use of another display and when changing the bootloader to android 9, the screen turns black... There is no solution, except for replacing the device.

P.S. Rooting or installing TWRP is impossible without replacing the bootloader of android 10.11 with Android 9, since only with it it is possible to unlock and install custom files.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
current bootloader version is T290XXU3CUF8. i'm getting black screen after flashing android 9 bootloader. i can build the whole twrp from scratch . but need some direction. is it impossible to deploy twrp on latest devices ??
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
i have built this recovery for this bootloader using dumprx tool. or can i downgrade the whole OS to android 9 and do the installation ??
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Yes, you can install android 9, but as soon as the android 9 bootloader is flashed, the display will be black. And how to use it?

TWRP replacement is secondary here, the current one also works, but with a dark display...

I do not know the solution to this problem and have not seen a solution in other topics...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
so basically no way to do anything right ??
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
On this instance of the tablet, Root & TWRP cannot be installed:(

At the same time, in the stock version, the device is 100% functional...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] shyamjayakar143:
i there any way i can install GSI with blank recovery
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
Maybe boot into recovery with the keys, and maybe then get to know the things you need to press by watching TWRP screenshots to get to ADB sideload. From then, you can run commands on your OC connected over ADB to flash GSIs I think.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Windows Vista Empire:
This TWRP won't install on my Samsung Tab A SM-T297 Tablet, how should I install it?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] LUCID_DREE:
I noticed that after complaining about this restricted S4 update to Samsung they reported it to their technical department and they recently in the 2nd half of the previous month released a binary 5 update in half of the countries (S5) , so can we compile a twrp install for the new binary update ? I have updated to the binary 5 ROM which was not available for my country so I installed binary 5 version from Brazil. Can you guide me after this 🙏?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Minionguyjpro:
That's the problem, I have seen it isn't fixed yet in version 5 and it is actually a bug that we cannot flash.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Ozturkbatus:
Hi, İ have this device but oem unlock is deleted from settings and i can't open it... what should i do? can you help me?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Ozturkbatus:
Hi, İ have this device (sm-t290) but oem unlock is deleted from settings and i can't open it... what should i do? can you help me?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] edsoncantuaria:
Maybe there is still an update for kernel T290XXS5CWG3?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Dharmtej:
Hello brother , do this work with samsung t295 ? if yes I got my tab with android 10 before I tried they said it is not possible to flash my device what do you think brother does this work now does this still rely on android 9 bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Dharmtej:
heybrother how do can you say in which binary your tablet is ? even I had a issue previous they said you need an android 9 bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Kerem48:
I am using sm-t297, but it is only available in Turkey. I recently failed while trying to root this device and while I was installing the rom, I noticed that it says sm-t297TR in the rom and I think this device is only available in Turkey.

This device is like a brother to SM-T290, I can run TWRP on it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bjezbolbat:
Sorry I am trying to install Lineageos 20 but i am having difficulties. I found your forum page, do you have any advice for me?

I added BL using Odin (step 9 ), but what to after that?

thank you very much!