yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
IIRC, only PTP and MTP transfer protocols support Android file transfers. The USB option used to be labeled for charging only. The SM-T290's AP file is 2.8 GB in size. I've encountered data transfer corruption a couple of times when copying nandroid backups v. adb pushing and pulling them.

I was referring to the AP recovery partition's boot.img and recovery.img files, which we're modifying to attain root in this thread.

---------- Post added at 09:11 AM ---------- Previous post was at 08:58 AM ----------

Thanks for the clarification.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
The choices under "Default USB configuration" look like I get to choose the file transfer protocol. I can't remember if choosing "Transferring files" fixed something for me. If it did, it was probably getting the timestamps preserved. I've been using Windows Explorer to transfer the 3GB AP file back and forth, and I've never seen corruption.

I'm still hung up over "AP recovery partition's boot.img and recovery.img files": AP.tar contains a file "recovery.img". I thought that was the "recovery partition". It "contains" a kernel and an initrd. I don't see how it could contain .img files.
[Samsung Galaxy Tab A series Guides, News, & Discus] exglynco:
Don't sweat it. You're talking to a biologist, not an engineer. When I see files named boot.img and recovery.img inside the AP tar file, they're img files. I don't care if they're text conf files or telephone numbers inside. Their names make them .img files.

Feel free to explain it all to me. I can picture a recovery partition that's defined by the AP tar file, which contains a kernel and initrd components of the partition. It could also contain boot.img and recovery.img files, whether they're text conf files, telephone numbers, or images. Salud.
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Good morning all,

Did anyone see this guide yet? If it works for the S10 and is just compressing to lz4 then it may well help us too.

https://xdaforums.com/galaxy-s10/how-to/guide-how-to-install-custom-rom-using-t4114435
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I think in that way compression in lz4 is completely unnecessary! without lz4, the file size will be larger,but it will be possible to flash ODIN and the old version, such as 3.12, and not 3.13.1 and higher, which can decompress lz4 files .That is, the author packs in lz4, so that ODIN unpacks it later,why this extra work?..

P.S. Samsung uses lz4 in new firmware to reduce their size,I don't see any other reason...

But the method itself is interesting,but the question is-where are the custom firmware for our device?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Released an update to 10 Android model T295C region CHC China, firmware T295CZCU3BTFE

:)
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
We if you've been successful in rooting this device I'm happy to build a ROM for it that's based on the stock version from Sammy. That way you can test it to see if it works.

I currently have 5 ROMs released and updated every month on XDA, so it's something that I can build with ease.

Feel free to pm me if you fancy trying stuff.

Regards,

Nathan
[Samsung Galaxy Tab A series Guides, News, & Discus] amnher:
Good for you. Hope it will be released here also
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I have a model T295 and I installed the firmware 10 Android T295XXU3BTFE, released earlier for the region XEV Vietnam.And I managed to get Root rights, though in an unexpected way :)

You can download any fresh firmware from the Samsung update server using the Samfirm or Frija program .
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
How did you manage to root it mate?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
In short: 1)flashed through ODIN part of BL from the previous firmware 9 Android. 2)rooted as 9 Android ;)

Now installed hybrid firmware 10 Android for the model T295C China, as the device itself is T295. Here are the screenshots:
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Do you know what revision your BL is at the moment?

I'm on 3 and if you are aswell, I'd love it if you could upload your files. :fingers-crossed:
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
In firmware 10 Android loader version 3, the previous firmware 9 Android also with version 3. The rooting file depends on the installed firmware,which one exactly is on the device?

Follow the link files for firmware T295XXU3BTFE region XEV Vietnam:

https://xdaforums.com/showpost.php?p=82995841&postcount=97
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
I'm on the T290 and although the tablet has ATF1 on it, I also have ATC2 and both are U3.

I only just saw that you're on the 295 :rolleyes:
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Follow link the file for firmware T290XXS3ATC2 :

https://xdaforums.com/showpost.php?зp=82649473&postcount=69

The bootloader must be unlocked before the file is flashed.
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
Hi, I'm trying to make a TWRP at least, since even this device does not have it, if you want to try to create a custom rom it would be something incredible, and I would be available for testing, but without TWRP the question remains, how do you plan to install it? since Odin hardly leaves anything other than stock to install? (sorry my english, i speak portuguese)

:confused:
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
In order for a custom TWRP recovery to be installed via ODIN:

1)the size of the TWRP must match the size of the stock recovery in 64 kB .the easiest way is to apply TWRP to the stock using the HxD program(HEX Editor). 2)in the tar archive, in addition to the custom recovery, you need to add a 256B patch file vbmeta.img. Then everything will be stitched and you can try to log in to TWRP.

PS before the firmware, disable the AutoReboot option, otherwise the stock recovery will be restored during the reboot...
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
huuu, interesting, but the problem is that none of the ports I made worked, do you have any for me to try?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I did porting around this kitchen:

https://xdaforums.com/android/general/guide-porting-twrp-source-t3843473

TWRP starts, but does not work
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
it's already a start, mine I can even install more don't work, can you give me the tar for me to take a look? and what do you mean by not working? he at least enter recovery?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
TWRP starts, but partitions are not mounted... Apparently, the original TWRP differs greatly from toljapia and our device.The difficulty is that modern devices have a high resolution, which is incompatible with our 1200*800(720)

I did TWRP for my T295, but it won't install on T290.
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Do you have source for your TWRP?

I have built roms before using LineageOS. Maybe I can get the partitions mounted.
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
I gave the link: https://xdaforums.com/android/general/guide-porting-twrp-source-t3843473

then follow the link 1-B for our model...

But the link is an old device,or rather an ancient one...
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Which kernel did you use? Stock? Magisk-enabled?

From which ROM?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Experiments with TWRP did for a long time, the core was stock, changed only the recovery...

did on OS 9 Android with 2 and 3 bootloader...

by the way, I tried to use the working TWRP FOR the t385 model as a basis ,but also failed.

I have little interest in TWRP, I need Root rights to work RootExplorer, Titanium, and some other programs. I'm making a small modification,and custom firmware has long been not interested.
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Can you send me your TWRP?

It will be easier for me to start with something that at least loads and show a TWRP screen
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Good! I will try to find this TWRP file on my computer at home and post it here...

Found a file :)

Here is a photo that runs on the T295 with the T295XXU3BTFG root firmware ...

It starts, but does not work ... :(
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Thanks!
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
"The ice has broken!"(c)

PDA/AP Version T290XXU3BTG1 .

CSC Version T290OLM3BTG1 .

MODEM/CP Version T290XXU3BTG1 .

Region XSA— Australia

Build Date 2020-07-02

Changelist 18961046

OS Q

OS Version 10

P.S. In multiregion OLM there are regions:

XEV;XSP;XTC;XME;THL;MYM;CAM;LAO;BRI;XNZ;SIN;STH;XSA;MM1
[Samsung Galaxy Tab A series Guides, News, & Discus] amnher:
Not yet in frijia
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Thanks. I will try it tomorrow.

Edit 1: am able to mount system partition. can browse with file manager. next, I need to mount data, then external_sd
[Samsung Galaxy Tab A series Guides, News, & Discus] LUCID_DREE:
Request to @J. Michael for making video on installing Magisk on SM-T290

My dear friend [MENTION=8875326]J.Michael[/MENTION] , I have not even been able to install Magisk on SM-T290 my tab, it would be very kind of you if you would make a video on how did you install Magisk and give the link to video, please my dear friend I am begging you please , give me a tutorial on how were you able to install Magisk 20.4 on the tab. thank you .?
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I will not be making a video. I do not see how a video can make clear the fussy details.

Tell us what you have done. Have you

read [MENTION=4470081]topjohnwu[/MENTION]'s installation instructions?

read this thread, and the thread on rooting the SM-T295?

unlocked your bootloader?

downloaded stock firmware?

downloaded Odin?

used Odin to burn *unmodified* stock firmware to tablet?

Maybe I should ask, do you have any experience with flashing software to other devices?
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
hey, how did you do to install recovery? how did you manage to get on Twrp? I'm trying to port one with the help of another developer, but I'm the only one who can test it, and I'm not able to install only the recovery, and even when I get back to the stock recovery, and I've already changed the binary, you can give me a light? kkk
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
I have twrp installed on my t295.

All I can get to work is browsing the system folder. I can create/delete folders, etc.

Problem with secure kernel. Cannot read /data, but can format it.
[Samsung Galaxy Tab A series Guides, News, & Discus] nixaro:
so the t290 has a twrp now?
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
It is a t295 twrp
[Samsung Galaxy Tab A series Guides, News, & Discus] nixaro:
same base principle is i am not mistake between the recovery only difference is the drivers for wifi and the other is 4g tablet but you would think the recovery would work for each but anyway have you tried the samsung no-encrypt file that people have posted?
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
this is a start, but I can't even install it, could you pass the files on to me? and how did you install them, if you have a special tip, it would help a lot, have you tried installing any img?

---------- Post added at 05:57 PM ---------- Previous post was at 05:54 PM ----------

exactly, that's why I say, if it works for one, it will work for the other without problems.

I still haven't tried the pure Twrp of the T295 that they transferred here, I think it's because of the windows, unpacking img files should miss something.
[Samsung Galaxy Tab A series Guides, News, & Discus] nixaro:
Yeah I test it out on my t290 tonight when I get home to make sure I had to do it to a couple other samsung devices and I will walk you through it
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
Here is the link:

TWRP.ZIP

To install:

1. unzip twrp.zip; you now have a twrp.tar file.

2. use ODIN to install it; uncheck auto reboot

3. after flash, press vol dwn + pwr key until screen goes blank, then quickly press vol up.

after msg about boot loader being unlocked, press pwr, then quickly press vol up + pwr.

After reboot, When screen goes show bootloader unlocked message, press pwr, then qickly press vol up.

That should take you into TWRP. It's a pain to get into TWRP from download mode, but the steps work.
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
thank you very much, I'm excited, because if this works for this twrp, it means that there is a great chance that the others that I tested have a certain success, I will test everyone including this Twrp, thank you very much, now is to test: 3
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
unfortunately now I came across this error, I updated it yesterday to Android 10, hoping for improvements, but decide to go back to test the TWRPS, and it was already, does anyone have any suggestions?
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
image is not showing
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
strange, it must have given error when uploading, in short, says it is not possible to install a rom with version 2 of the bootloader, and now my version is 3.

I'm using Australian Rom with android 10
[Samsung Galaxy Tab A series Guides, News, & Discus] secretwolf98:
Were you able to get TWRP to work on Android 10? I just need to get off of OneUI, it just lags like crazy with only 2GB of RAM.
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
unfortunately not, these days I'm out of time, I haven't even rooted on Android 10, but I'll keep testing, I still haven't given up on this tab, and my reason for wanting TWRP is the same, leaving the Samsung UI
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
could someone help me patch these files? I'm not able to do it on Windows 10, it is to do roit in this version, I updated and lost the root

https://drive.google.com/file/d/1-5eY7yFSuDRce5EiReGPbffzg9Mq9e8U/view?usp=drivesdk
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
What do you mean by "patch"?
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
sorry my english, it is to modify with magisk and change the sizes of the IMG to be able to install via Odin, I can't do this on windows 10, I'm asking for help, if someone could do this for me, if you can, I would appreciate it much
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I think you should patch with Magisk. That way you will know which version of Magisk is being used.

You are using Android 10. I think that changes how you should patch with Magisk. Check this thread and the T295 thread. Someone reported success after patching boot.img. I do not think he patched recovery.img.

Re: pad / overlay / change the image size: What have you tried?

[MENTION=1826556]gcrutchr[/MENTION] used a binary editor. I rebooted to Linux to pad the images and build a new tar file. There are "packages" that make Linux commands available under Windows. You might already have one in Windows 10: I have read about WSL (Windows Subsystem for Linux), but I have not tried it.

You have a Linux-ish environment on your tablet. You have to transfer the firmware (boot.img, vbmeta.img) to the tablet to let Magisk patch it. You end up with the patched files on the tablet. You can use a command prompt (shell; terminal window) to fiddle with the image files to pad them to the original length.
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
I recently tried downgrading my Android 10 bootloader to Android 9. Then, patching just the boot.img & vbmeta.img using Magisk. I created a .tar file using Cygwin, then used ODIN to install the .tar file. It worked! Thanks to [MENTION=3378358]Talich52[/MENTION] for this suggestion.
[Samsung Galaxy Tab A series Guides, News, & Discus] Reick7:
hu, maybe works, i try this later, thanks for a help :fingers-crossed:
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
You will still need to use a hex editor to make the file size 64 MB. See my post "Finally Rooted my T295" post #1
[Samsung Galaxy Tab A series Guides, News, & Discus] nickny:
Hey guys,

I am trying to get TWRP/Root on my Galaxy Tab SM-T290 Android 9. I found your thread [MENTION=1826556]gcrutchr[/MENTION], and I got my bootloader unlocked. Since I am on SM-T290, I can't use the pre-patched files and will have to do this manually.

But one of your instructions was to extract the ROM off my current device -- is there a set of instructions anywhere to do this with the SM-T290?
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
use the recovery, vbmeta, kernel from your downloaded rom, i.e, the one you downloaded from the Internet.
[Samsung Galaxy Tab A series Guides, News, & Discus] nickny:
Thanks for the fast reply, I will make sure to shoot a donation your way!

Is there a good place to get the latest stock rom?

I found your old post here :

https://xdaforums.com/showpost.php?p=81422479&postcount=10

Also found a sammobile.com link: www. sammobile.com/samsung/galaxy-tab-a-80-wi-fi/firmware/#SM-T290

But there is no North America version anywhere on their page it seems.
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
I used XEF-T290XXU1ASH1-20190923073110.zip

Some time later, I found XAR-T290XXU1ASH1-20190830110240.zip. When I unpacked it, the files were identical to the XEF files.

I have never allowed my tablet to update.

At some point, I burned the XEF files to the tablet with Odin, mostly to prove that Odin would ever work, but also to be sure that when I patched with Magisk, I was patching what was actually on the tablet.
[Samsung Galaxy Tab A series Guides, News, & Discus] gcrutchr:
I use 'Frija' to download ROMS for all my devices.
[Samsung Galaxy Tab A series Guides, News, & Discus] nickny:
Thanks [MENTION=8875326]J.Michael[/MENTION] and [MENTION=1826556]gcrutchr[/MENTION] for your info. I found that zip you are referring to JMichael, downloading now but since I am not a member will take 6 hours or so. In the meantime I went to Frija.

I got Frija all setup, but the auto-mode wants to download Android 10, and I want to stick with Android 9.

In order to go to manual mode, I had to find some roundabout way to get my AP/CSC/CP values via the DRParser mode since the tablet does not have a dialer. As seen here: https:// support.samsungknox.com/hc/en-us/articles/360012936794-How-to-check-your-AP-CSC-CP

However my tablet does not list the CP/Phone value, just the other two.

I was unable to find any more info on it, is there another way to find my CP value?
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
You can download any firmware from here for free and without registration, but slowly:

https://samfrew.com/ru/model/SM-T290/

There is also all the data about the firmware, the name of the parts AP, CP, CSC

P.S. Samfirm or Frija allows you to download only the latest firmware from the Samsung update server
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
I'm pretty sure I still have 9 firmware in my laptop, I'll check in a minute and upload to my Gdrive.

Ok, I have T290 ASL3, ASL6, ATC2, ATF1 and BTG1.

Let me know which one you want.
[Samsung Galaxy Tab A series Guides, News, & Discus] nickny:
Ahh [MENTION=3852065]sevsman[/MENTION] that would be amazing! I am running ATC2. Thank you!

Yea exactly without that CP value I can't download old firmware via Frija.
[Samsung Galaxy Tab A series Guides, News, & Discus] sevsman:
Here you go mate...

https://drive.google.com/file/d/1v_0qLVZi8cF4wn8SLpl1DCFexGxNowd6/view?usp=drivesdk

Let me know if you need any of the others.
[Samsung Galaxy Tab A series Guides, News, & Discus] Talich52:
Samfirm or Frija allows you to download only the latest firmware from the Samsung update server.

The old firmware cannot be downloaded, it is simply not there ...
[Samsung Galaxy Tab A series Guides, News, & Discus] nickny:
Oh wow ok, every article I have read so far on Frija has said I should be able to get older versions via Manual mode, but I did not have success even though my CP value ended up being correct (it is same as AP) so I believe you are right.

Thank you sevsman, lifesaver! Downloaded the stock ROM already, so much quicker and more reliable than samfrew.

Looks like I have a long night of hex surgery ahead of me!

I will keep you guys posted, I am sure I'll screw something up and have more questions.

But thanks for the help getting me this far already.
[Essential Phone Questions & Answers] IAmConfused:
Updated to Android 10 and after a couple of days use am reasonably happy & almost issue free.

One issue being the missing option to Delete file(s) in File Manager, which I've resolved with a 3rd party app

The other is a PITA for me. I routinely use(d) Dropbox to sideload APK's which no longer works for me

Clicking on the file in Dropbox results in

"Can't open

'file name'.apk

Please download an app that can open this file."

Have tried selection "Open With ..." from the DropBox menu with no success (no options presented to try ... just the same failure message presented above)

Permissions to sideload unknown apps correct as expected (system & dropbox specific)

Have not seen this reported elsewhere and am unsure whether Android 10 issue or Dropbox or ?

Have workaround by exporting file to phone then installing from the downloads folder which works but ...

Anyone else experiencing ?

TIA
[Essential Phone Questions & Answers] helowsa:
Have you found the solution maybe?

Thanks for reply
[Essential Phone Questions & Answers] IAmConfused:
No resolution ... Still stuck using Export workaround. Issue reported by a user on Dropbox forum but discussion taken to private e-mail and nothing further.

Am surprised that issue not more widely identified
[Essential Phone Questions & Answers] Ziken:
Yeah, I don't know what going on, but it has to be either on Google or Samung's End...
[Essential Phone Questions & Answers] frank93:
for what it’s worth after all these months: same here. fresh install, pixel 3a, android 10, latest dropbox, .. getting that same message, using that same "workaround" with export and opening the apk from an explorer. :/ did youd find a better solution? i just reported this on dropbox forums, with low hopes for getting it fixed though ..
[Xiaomi Redmi Note 7 Pro Questions & Answers] sanjyot:
I am not able to stream Netflix in HD since the latest update, my device is not rooted or anything.

Does anyone know what's going on, reinstalling the app doesn't help, also the launching of the app takes hell of a time
[Xiaomi Redmi Note 7 Pro Questions & Answers] joke19:
Late, but test another version

https://www.apkmirror.com/apk/netflix-inc/

When it work, disable auto update.

Sorry prime user
[Samsung Galaxy Tab S6 Questions & Answers] MrJoker8989:
So,

Pandora is not working, once it starts it gives an error that they are having technical difficulties. After clicking ok, it tries to connect (presumably to their servers) and then fails. It asks if I want to reconnect but that also fails.

I upgraded from a galaxy tab s(running a version of linageos). Google picked up a recent backup, and restored all my apps.

I launched pandora, and immediately had the error. It did not ask me to log in. I cleared cache, cleared data, and reinstalled several time. Still have errors. I expected that clearing the data or reinstalling would require me to provide login information; but it does not.

Anyone have similar issues, or have gotten Pandora to work?
[Samsung Galaxy Tab S6 Questions & Answers] Fear Knot:
I am having the same issue. Tried uninstalling and reinstalling, changing battery optimazation, allow backrground usage, etc. Still getting the same error