[UPDATED][RECOVERY][UNOFFICIAL]TWRP 3.6.2 for 2020 Galaxy Tab A7 10.4[SM-T500]

[smedlytonker]

I'm able to do it now also ...Not sure what step I was messing up on. But I'm back to using the regular TWRP as there are some bugs in Skyhawk that caused me to move back.

 

[lewmur]

I'm able to do it now also ...Not sure what step I was messing up on. But I'm back to using the regular TWRP as there are some bugs in Skyhawk that caused me to move back.

What bugs? I have Skyhawk installed but haven't used it much.

 

[smedlytonker]

• What bugs? I have Skyhawk installed but haven't used it much.

  • The recovery would crash and restart when I installed zip files intermittently (not great).
  • Lacked the ability to programmatically reboot into the OS which for most people is not important, but I'm writing an automated script to root and load software on hundreds of tablets and part of the configuration has to be done in the OS. One of the commands that does not work 'adb shell twrp reboot' - just cycles back to the recovery image.
  • Seems like their was more but I don't recall now.

 

[lewmur]

• • The recovery would crash and restart when I installed zip files intermittently (not great).
  • Lacked the ability to programmatically reboot into the OS which for most people is not important, but I'm writing an automated script to root and load software on hundreds of tablets and part of the configuration has to be done in the OS. One of the commands that does not work 'adb shell twrp reboot' - just cycles back to the recovery image.
  • Seems like their was more but I don't recall now.

You obviously know more about adb shell cmds than I do, but it would seem to me that "twrp reboot", instead of just "reboot", is telling it to reboot into recovery. Just a thought. BTW, thanks for the replay.

 

[ragarcia87]

Just compiled an updated TWRP 3.6.2​

What's new in 3.6.2:​

Android 9 and Android 11 Branches​

• A12 keymaster keyblob structure file update (for no pin encryption) - zhenyolka & Quallenauge
• Fixes
  • Override bootctrl for flashing images - CaptainThrowback

Android 9 Branch​

• Keymaster 3 dump functions - koron393

Android 11 Branch​

• Mtp ffs handle recreated when usb is unplugged - nijel8
• Fixes
  • Only compile vendor kernel module loading support when requested - CaptainThrowback
  • Add missing selinux contexts - CaptainThrowback
  • Fix sepolicy comparison on vendor - webgeek1234

• download attached
• download latest updated release from github device tree https://github.com/juic3b0x/twrp_android_device_samsung_gta4lwifi/releases/tag/v3.6.2_11-1

• TWRP version: 3.6.2_11-1
• For device: gta4lwifi
• Device Tree:https://github.com/juic3b0x/twrp_android_device_samsung_gta4lwifi
• Maintainer/Authors build: ragarcia87

//EDIT//
BUGS---
For some reason MTP isnt wanting to work for me using linux... havent tested windows... working on it...

 

[elswerky]

Is there twrp fir LTE version sn-T505N ??

 

[ragarcia87]

Is there twrp fir LTE version sn-T505N ??

DISCLAIMER***
Back up before trying and Im not responsible for bricks, etc..

It should work, I've known others in the past to use the SM-T500 TWRPs on SM-T505... it shouldn't matter that its LTE or WIFI due to it only being TWRP, the partitions should be the same, etc...

 

[elswerky]

DISCLAIMER***
Back up before trying and Im not responsible for bricks, etc..

It should work, I've known others in the past to use the SM-T500 TWRPs on SM-T505... it shouldn't matter that its LTE or WIFI due to it only being TWRP, the partitions should be the same, etc...

Unfortunately ithe t505N is organization tan used for education ,,secured by Knox to prevent even uock8ng bootloader

It only install educational apps

 

[ragarcia87]

Unfortunately ithe t505N is organization tan used for education ,,secured by Knox to prevent even uock8ng bootloader

It only install educational apps

Have you tried this guide here? https://xdaforums.com/t/guide-sm-t5...4-unlock-bootloader-root-with-magisk.4185993/

As far as I can tell, doesnt matter 500 or 505 the bootloader should be able to be unlocked...

if you cant unlock the bootloader then you cannot install TWRP at all, im sorry...

 

[elswerky]

Have you tried this guide here? https://xdaforums.com/t/guide-sm-t5...4-unlock-bootloader-root-with-magisk.4185993/

As far as I can tell, doesnt matter 500 or 505 the bootloader should be able to be unlocked...

if you cant unlock the bootloader then you cannot install TWRP at all, im sorry...

When bootloader is unlocked in 2ducational A7. , On boot after reset Knox detect that software is modified and you have to lock bootloader again to be able to boot

 

[lewmur]

When bootloader is unlocked in 2ducational A7. , On boot after reset Knox detect that software is modified and you have to lock bootloader again to be able to boot

I'm guessing, and it is ONLY a guess, that Samsung sold this model at a big discount with the intent that it only be used "for educational purposes". That said, if you succeeded in unlocking the bootloader, you can try booting to download and flashing a regular STOCK ROM via Odin. If you can get that to boot, then you could proceed with TWRP. If that doesn't work, then you are probably just out of luck.

 

[elswerky]

I'm guessing, and it is ONLY a guess, that Samsung sold this model at a big discount with the intent that it only be used "for educational purposes". That said, if you succeeded in unlocking the bootloader, you can try booting to download and flashing a regular STOCK ROM via Odin. If you can get that to boot, then you could proceed with TWRP. If that doesn't work, then you are probably just out of luck.

Here software centers can make it like normal sold A7 by changing educational software like normal software but when you factory reset tab, it return back to educational software
I did changed software in one if software shops and unlocked bootloader,, but after I u locked bootloader ,,tab reset And on reboot asked to connect to wifi Bd detected that software has been modified And didn't continue and I have to lock bootloader again ، then after locking tab reset and asked to connect to wifi and detected that tab is owned by my organization ( educational territory). And then only downloaded educational software and was administrated by educational organization

 

[elswerky]

I'm guessing, and it is ONLY a guess, that Samsung sold this model at a big discount with the intent that it only be used "for educational purposes". That said, if you succeeded in unlocking the bootloader, you can try booting to download and flashing a regular STOCK ROM via Odin. If you can get that to boot, then you could proceed with TWRP. If that doesn't work, then you are probably just out of luck.

Also after this

Download mode can't flash orgininal software or recovery (closed download )

 

[elswerky]

It is secured by some sort of Knox in hardware

 

[lewmur]

Also after this

Download mode can't flash orgininal software or recovery (closed download )

Sorry, but if you can't flash regular stock via download, then I don't know what else you can do. Looks like Samsung has it pretty well locked down.

 

[elswerky]

Why I got bootloop and software break on tab sm-t505N ??

 

[lewmur]

Why I got bootloop and software break on tab sm-t505N ??

Because this is for the T500 and NOT the T505.

 

[elswerky]

I

Because this is for the T500 and NOT the T505.

I am not even talking about t505
Am talking about t505N
Which has its own software other than t505
Even I tried to flash t505 software to it via Odin and failed


So no how to root and have twrp for t505N ??

 

[lewmur]

I

I am not even talking about t505
Am talking about t505N
Which has its own software other than t505
Even I tried to flash t505 software to it via Odin and failed


So no how to root and have twrp for t505N ??

I don't understand. If T505 firmware doesn't work, how would you expect T500 to? I understand you are just looking for help but you would be better off asking in the general "Questions and Answers" thread than one dedicated to the T500. My guess is that if the T505 firmware didn't work, it wasn't because yours is a T505N but rather that you have the wrong version of the stock firmware installed. Your version of stock has to match the version the T505 TWRP uses. It should say in the OP for the T505.

 

[Taikun22]

Does it work on android 12 ui 4?