How To Guide Install Stock ROM - Xiaoxin Pad Pro 2021 [TB-J716F]

[Tropaion]

How to install Stock ROM - Xiaoxin Pad Pro 2021 [TB-J716F]​

I tried installing a GSI-ROM on this tablet, which basically worked except for three/four bugs I coulnd't solve.
So I tried to restore the Stock ROM in the meantime and will share my experience.
Your data will be deleted, try it at your own risk.

Requirements:

• Download Stock-ROM and unpack it
• Download and install QFIL-Tool + Driver
• PC with ADB-Tool

Installation:

1. Boot tablet in EDL-Mode, there are two ways (in EDL-Mode screen always remains off):
   • If tablet is fully booted: use adb command "adb reboot edl"
   • If tablet is off or can't be booted: press the volume up button and hold, plug the usb cable into the tablet and PC and wait a few seconds
2. Now this should appear in your device manager:
   
3. Start the QFIL-Programm, it should detect the port with the same name.
4. Go to "Configuration" -> "FireHose Configuration". At device type select "ufs" and tick "Reset After Download" then press ok:
   
5. Back in the main window select "Programmer Path" and browse to the ROM-Folder, select the file "prog_firehose_ddr.elf".
6. Select "Content XML" and browse to the ROM-Folder, select the file "contents.xml"
7. Click "Download Content" and wait, may take a few minutes
8. After its done, this status message should a appear and the tablet should reboot.

Done, Stock-ROM should boot now.

 

[sakun-ice]

Thanks. And relock bootloader and Widevine L1?

 

[Tropaion]

Widevine is L3, probably because the bootloader is unlocked.
I haven't tried relocking the bootloader but according to the chinese ZUI website it's not possible to relock.
But you can try it and share you experience, try it with "fastboot oem lock" or "fastboot flashing lock".

 

[ThiagoArecippo]

HI, How could i use adb since my tab doesnt boot up? It is stucked at bootloop since I receive it from the store

 

[Tropaion]

Is your bootloader locked or unlocked? Did you already try to Wipe data/factory reset?
You could try this: https://forum.xda-developers.com/t/guide-how-to-reboot-to-edl-from-fastboot.3394292/

 

[ThiagoArecippo]

Is your bootloader locked or unlocked? Did you already try to Wipe data/factory reset?
You could try this: https://forum.xda-developers.com/t/guide-how-to-reboot-to-edl-from-fastboot.3394292/

It is unlocked but it doesnt even star at all.. only bootloop, i can't put it on bootloader mode or fastboot.. nothing

 

[Tropaion]

I can only think of one thing you can try to enter edl mode, which I recently read in an chinese forum.
1. turn off tablet
2 open qfil software
3. hold volume up button
4. plug in usb cable and connect tablet with your pc while holding the button pressed
5. let lose of volume up button
6. wait for about 2 sec., tablet should be in edl mode. qfil software should detect the tablet.

 

[ThiagoArecippo]

I can only think of one thing you can try to enter edl mode, which I recently read in an chinese forum.
1. turn off tablet
2 open qfil software
3. hold volume up button
4. plug in usb cable and connect tablet with your pc while holding the button pressed
5. let lose of volume up button
6. wait for about 2 sec., tablet should be in edl mode. qfil software should detect the tablet.

Didnt worked for me either I'll keep trying before return it to the seller..

 

[luizkun]

did you try to relock bootloader then flash stock rom again ? will this method can bring back L1 DRM ?

 

[ThiagoArecippo]

did you try to relock bootloader then flash stock rom again ? will this method can bring back L1 DRM ?

Didn't tried because my pc even recognize the tablet..

 

[ThiagoArecippo]

Somehow i managed to get QFIL to recognize the tablet but I'm getting this error..

 

[Tropaion]

Somehow i managed to get QFIL to recognize the tablet but I'm getting this error..

Which?

 

[ThiagoArecippo]

Which?

Hahaha was the sahara fail but I couldn't attach the image I couldn't managed to flash the rom and decided to return it to the seller.. I'm deciding if I get the chinese or global rom. I want widevine L1

 

[Cris74m]

Hi @Tropaion , I tried your steps but now the tablet it's stuck in boot. It keeps showing the boot animation, than after a while it stops and the screen turn off. Than nothing. I can still access recovery mode but I can't do anything from there, please help me.

 

[Tropaion]

@Cris74m What did the qfil status log say?

 

[Cris74m]

@Cris74m What did the qfil status log say?

it showed the same thing that you posted above (https://forum.xda-developers.com/attachments/qfil_2-png.5434149/), with the download succeed and everything.

Now I am only able to get the computer to recognize the device as this:

 

[Tropaion]

@Cris74m Does the non-animated or animated lenovo logo show up?
You can try to go to recovery and do an factory reset/wipe data.
Your device is TB-J716F not TB-J706F?

 

[Cris74m]

@Cris74m Does the non-animated or animated lenovo logo show up?
You can try to go to recovery and do an factory reset/wipe data

As the usual boot. It shows the Lenovo logo with the "powered by android" thing, than it shows the animated logo and after a while it gets stuck and than turn off the screen.
Already tried factory reset but nothing changed.

 

[Cris74m]

Somehow I was able to get the laptop to recognize the device and doing a new install using the firhose_lite version; now the device booted correctly, unfortunately it has no google services

 

[Tropaion]

@Cris74m How did you manage to get it to recognize it? Change driver?
Just download Google Play Store and install it manually.
BTW did buy your tablet with global ROM and wanted to go back to chinese?