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

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ThiagoXBS

Member
Apr 23, 2022
12
0
Brasil
Done... Everything goes perfect... Next step is to lock the bootloader.. This is under fastboot or EDL?
Hi, on page 2 there is a great guide on how to lock bootloader and get L1 done by PHRS. It was working perfectly until there was a big update from ZUI 12 to ZUI 13, after which many people are facing problems when trying to lock bootloader with ZUI 12 stock rom.

Apparently the only way to do this process without getting corrupt errors is to install the latest ZUI 13:

1) download the file below.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update. zip" .

4) download the update.

5) lock the bootloader following the guide on page 2.

if you try the process, leave your feedback 😀
 

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  • TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip
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Last edited:

ThiagoXBS

Member
Apr 23, 2022
12
0
Brasil
Hello there, i was able to lock / unlock with the lenovo batchscript with the sn.img. However now i am getting new error, see below:

View attachment 5612035

At this point i am very lost, is there a way to flash the fake global rom? i just want a working tablet now..
Hello, how are you ?

Well, I saw that I was having the same problem with your lenovo p11 pro 2021, I haven't tested it yet, but I believe that the only way to lock the bootloader without getting corrupt errors is: unlock bootloader + flash with stock rom + update to the latest zui 13 + lock the bootloader.

below is the file of the last zui 13 I have, use a file explorer, put it in the root folder and rename it to "update.zip" . If you try this, please leave your feedback!
 

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  • TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip
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CleberJorge

Member
Apr 1, 2021
16
11
Brasil
Guide 05/2022
I made a guide using the information in this post
Hope it helps people
Thanks to all collaborators

 

ThiagoXBS

Member
Apr 23, 2022
12
0
Brasil
Guide 05/2022
I made a guide using the information in this post
Hope it helps people
Thanks to all collaborators

Great topic friend, I'm sure it will help a lot of people.
I saw that some forum users were getting corrupt error when trying to do a similar procedure. I believe it is necessary to download the updates manually after flashing the stock rom, can you tell me if it is really necessary?
 

CleberJorge

Member
Apr 1, 2021
16
11
Brasil
Thank you very much
When installing Stock ROM and locking Bootloader, Tablet starts to receive OTA updates and Widevine is also restored to Widevine L1 for high resolution media.
 
Last edited:

CleberJorge

Member
Apr 1, 2021
16
11
Brasil
Great topic friend, I'm sure it will help a lot of people.
I saw that some forum users were getting corrupt error when trying to do a similar procedure. I believe it is necessary to download the updates manually after flashing the stock rom, can you tell me if it is really necessary?
Thank you very much
When installing Stock ROM and locking Bootloader, Tablet starts to receive OTA updates and Widevine is also restored to Widevine L1 for high resolution media.
 

CleberJorge

Member
Apr 1, 2021
16
11
Brasil
I need help i accidentally press erase before download in QFIL , anyway to fix it.......
Hi
Try following this guide in (Part 4/Mode1) and putting the Tablet into forced EDL mode, and see if the PC can communicate with the PC via the USB port
Install all Qualcomm USB drivers from this tutorial and try to follow the tutorial.

 
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amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold
Hi
Try following this guide in (Part 4/Mode1) and putting the Tablet into forced EDL mode, and see if the PC can communicate with the PC via the USB port
Install all Qualcomm USB drivers from this tutorial and try to follow the tutorial.

Hi tried doing that doesn't work it just boot up to the android recovery with just 2 options like over here
 

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Jan 28, 2021
8
1
Hello.

I saw your post here and I really appreciate your help and time making it. Could you help me with flashing? Accidently I've changed my slot A to B inside TWRP and now the tab doesn't make any sign of turning on. I think the firmware is still there, but I'll need to flash using QFIL. I think I've made successfully in entering EDL mode, Qualcomm drive appears in Control Pannel, but I'm getting Sahara error while trying to flash as below.
Could you help me to understand what I'm doing wrong?
 

Rail-

New member
May 25, 2022
2
4
This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

The process for updating manually is the following:

1) download the update.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update.zip".

4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

Repeat these steps for each individual update

The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

@CleberJorge you might want to add this to your guide.

Spent alot of time cracking this annoying issue, so hope it helps a few people out.
*Note this procedure works as of 25/5/22, it may change if there's a new update.
 
Last edited:

amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold
This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

The process for updating manually is the following:

1) download the update.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update.zip".

4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

Repeat these steps for each individual update

The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

@CleberJorge you might want to add this to your guide.

Spent alot of time cracking this annoying issue, so hope it helps a few people out.
*Note this procedure works as of 25/5/22, it may change if there's a new update.
Just wanna add that in the Chinese Lenovo forum stated that for v13.1.555 you can't downgrade the firmware , also tried to root it also seems to have issues with regards of boot.img patched magisk not working.
 
Jan 28, 2021
8
1
This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

The process for updating manually is the following:

1) download the update.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update.zip".

4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

Repeat these steps for each individual update

The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

@CleberJorge you might want to add this to your guide.

Spent alot of time cracking this annoying issue, so hope it helps a few people out.
*Note this procedure works as of 25/5/22, it may change if there's a new update.
did you try to update your tablet just after the 2nd update? I've followed another guide to update the tablet to ZUI 13.0.364 after the QFIL flash, but I got that corrupt message as well. I've bought it on AliExpress and it also went with unofficial global ROM running, bootloader unlocked then. now I've updated to 13.1.555, do you think this is going to work? if I got the message again, will need to flash and reinstall every app again + files.
 

Rail-

New member
May 25, 2022
2
4
did you try to update your tablet just after the 2nd update? I've followed another guide to update the tablet to ZUI 13.0.364 after the QFIL flash, but I got that corrupt message as well. I've bought it on AliExpress and it also went with unofficial global ROM running, bootloader unlocked then. now I've updated to 13.1.555, do you think this is going to work? if I got the message again, will need to flash and reinstall every app again + files.
I found if I hadn't updated to 13.1.555 I could not lock the bootloader successfully. I would always get the corrupt message.
 

CleberJorge

Member
Apr 1, 2021
16
11
Brasil
This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

The process for updating manually is the following:

1) download the update.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update.zip".

4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

Repeat these steps for each individual update

The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

@CleberJorge you might want to add this to your guide.

Spent alot of time cracking this annoying issue, so hope it helps a few people out.
*Note this procedure works as of 25/5/22, it may change if there's a new update.
Thank you so much for the compliments, that's how we can help each other!
I don't know if there is a difference from device to device, because in my case I did exactly what is in the tutorial..
1- Original ROM
2-Lock Bootloader
3-OTA Official Update
But I've seen reports here on the forum that there really are some people who have problems
Thank you so much for sharing your experiences and knowledge.
 
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CleberJorge

Member
Apr 1, 2021
16
11
Brasil
This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

The process for updating manually is the following:

1) download the update.

2) use a file explorer and move it to the root folder of your device.

3) rename it to "update.zip".

4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

Repeat these steps for each individual update

The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

@CleberJorge you might want to add this to your guide.

Spent alot of time cracking this annoying issue, so hope it helps a few people out.
*Note this procedure works as of 25/5/22, it may change if there's a new update.
Looks like there's an update missing from the ZUI package from ZUI 12.6.211 to ZUI 12.6.238
 

duonglv

Member
Oct 9, 2010
22
5
I can confirm these:
- Even with unlocked bootloader, you still get all the ota update.
- You have to update to the latest version that the tablet has been, and then you’d be able to lock bootloader again.
- After the bootloader’s been locked, widevine’s still L3, nothing change.
 

CleberJorge

Member
Apr 1, 2021
16
11
Brasil
I can confirm these:
- Even with unlocked bootloader, you still get all the ota update.
- You have to update to the latest version that the tablet has been, and then you’d be able to lock bootloader again.
- After the bootloader’s been locked, widevine’s still L3, nothing change.
No, with the bootloader unlocked you do not receive OTA updates
With the generic Global ROM, you only get an OTA update and nothing else, it's on ZUI 12
You need to go to ROM Stock and lock the bootloader or go to ROM Stock and do manual updates and lock the bootloader!
 

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    08176BD2-4A15-4C46-9D4A-EC8A7B1C946B.jpeg


    My device, stock chinese rom, unlocked bootloader, ota update from ver 12 to 13.1.555, only after that I was able to lock bootloader again without getting corrupt message. You can check again to see that if you update ota, it will skip ver 13.0.346 and goes straight from ver 12 to 13.0.364 with the file size above.

    Tips: you go to Setting - Notification & status bar, turn on Show network realtime speed. Check the system update, the update file will be download automatically (check the network speed to see), after finish downloading the file, you go back to the system update to install.
    1
    Hard to say, I wouldn't count on it though.

    So this tablet was released with Android 11 but it might not even get one Android update? That is disappointing.
  • 15
    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:
    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:
      device_manager.png
    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:
      qfil_1.png
    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.
    qfil_2.png


    Done, Stock-ROM should boot now.
    8
    Hi guys, I'll leave my contribution here. I was forced to reinstall the ROM as I had the excellent idea to lock Bootloader with the 'Global' ROM installed. Everything went wrong and my tablet didn't start anymore, it was just on the Fastboot screen. The “Tropaion” tutorial helped me a lot.

    I was using Windows 11, and it didn't recognize the tablet at all and when it did, it gave an error at the time of “download content” in QFIL, the famous error of “sahara fail”. At least in my case, I had to do the procedures for Windows 10 newly installed on the machine.

    Starting from the beginning

    • I used the QFIL that comes with QPST_2.7.496. Qualcomm's driver installer came with it as well. (https://qpsttool.com/)
    • After installing QPST I put the ROM folder inside the bin folder. Example: "C:\Program Files (x86)\Qualcomm\QPST\bin\TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qps"
    • I started QFIL and configured it according to what “Tropaion” taught.

    The EDL Dilemma

    • As my tablet was already stuck on the Fastboot screen, so I turned it off and pressed the volume up button, connected the cable to the PC and tablet, waited a few seconds and released the button.
    • Soon it went into EDL mode (It stays with the screen off, but connected to the PC) and I continued the procedure in QFIL. (If there is any error and you want to exit this mode just press the volume up & Power On/Off button together for ~30s, but if everything works out you won't need to)
    • Then he did the installation and the Lenovo Xiaoxin Pad Pro 2021 worked perfectly. But with the bootloader unlocked.

    Locking Bootloader with Chinese ROM installed


    - When I turned on the Xiaoxin Pad it already had an update from Lenovo. And it was updated successfully!
    - I installed the Play Store through the lenovo store, and even the tablet is with the Play Protect Certificate activated and Widevine L1 everything ok.


    Important: This method worked for me, but it doesn't mean it will work for you. Unforeseen events can happen during the procedure. As I've never installed a ROM in my life, it took me quite a while to fix my error and get my Tablet back up and running :). So do it at your own risk.

    Hope this helps ;)


    New update Lenovo
    20211024_095359.jpg


    DRM Info
    Screenshot_2021-10-25-01-01-10-1625424965.jpg


    [Update] ZUI 13.0.364 is now available!!​

    Screenshot_2021-11-20-09-37-40-0847653534.jpg

    Screenshot_2021-11-20-09-37-24-0718768572.jpg
    7
    Finally managed to install China ROM. I started with unlocked bootloader and Banggood tablet with global ROM.
    Everything OK, finally got Widevine L1, OTA. Only English and Chineze languages. Netfix works in FullHD.

    I have run into sahara fail issue on windows 11. To resolve this, I followed @PHRS and @Tropaion guides. USB debugging has to be enabled first in the tablet menu.

    1. Install Qualcomm USB Driver v1.0 and restart computer
    driver.jpg


    2. Install QPST Tool in default path ProgramFiles(x86) https://qpsttool.com/qpst-tool-v2-7-496
    3. Extract ROM content in C:\Program Files (x86)\Qualcomm\QPST\bin\TB-J716F_CN_OPEN_USER; I guess this is important, because if I left the ROM in a Desktop folder, I got Sahara fail. May be due to windows 11 security implementation and ProgramFiles file access stuff...
    4. Connect tablet in EDL mode - I did it with with adb command "adb reboot edl"
    5. Check if the tablet is visible in Device manager, under Ports (COM&LPT); note the port number. Tablet screen is black.
    6. Execute as Administrator "C:\Program Files (x86)\Qualcomm\QPST\bin\QFIL.exe"; the port number from step 5 should be visible in QFIL.
    7. Setup QFIL / FireHose Configuration as indicated in Opening post (0-Sahara, ufs, reset after download)
    8. Browse Programmer path with "C:\Program Files (x86)\Qualcomm\QPST\bin\TB-J716F_CN_OPEN_USER\prog_firehose_ddr.elf" and Content XML with "C:\Program Files (x86)\Qualcomm\QPST\bin\TB-J716F_CN_OPEN_USER\contents.xml"
    Screenshot 2021-11-24 182003.png


    9. Click download content. For me it worked fast, the log showed the processes running in a few steps. I had a USB3 connection, maybe this is why it went very fast (~20-30 seconds).
    10. Tablet can be rebooted with the new ROM, but still Widevine L3
    11. To lock the bootloader, first install LenovoUsbDriver_v1.1.47
    12. Use @Tropaion lock batchscript https://forum.xda-developers.com/t/...n-pad-pro-2021-tb-j716f.4347321/post-85775623
    13. The bootloader is locked and the tablet is reset. Widevine L1 and OTA after this.
    14. A bit weird boot with all the Chineze, but embedded apps can be easily uninstalled. I installed Aptoide, then Google Play, Netflix, Swiftkey instead of the chinese one, etc.

    Thank you @Tropaion, @PHRS and the rest of XDA community. All the best!

    LE. By the way, when I first got the tablet I thought the wifi module is broken or something, because it connected my wifi, but with limited connection. I finally realized that the date/time was wrong (because of the empty battery I guess), and after I manually adjusted the date, internet connection was established.
    4
    This is a guide for anyone that is trying to lock the bootloader and receiving a "Your device is corrupt" message.

    I just got my Xiaoxin Pad Pro 2021 [TB-J716F] which had the global rom and unlocked boot loader. I followed CleberJorge's amazing guide to put the original Chinese rom on which worked perfectly up until you have to lock the bootloader, which I then got the “Your device is corrupt…” message.

    To solve this you have to manually update to the latest version ZUI 13 before locking the bootloader again. Once you have done this you will be able to do OTA updates and you will have widevine L1 support for HD Netflix etc.

    CleberJorge's guide to flash to stock chinese rom is here https://forum.xda-developers.com/t/...n-p11-pro-2021-original-rom-tb-j716f.4446671/

    The process for updating manually is the following:

    1) download the update.

    2) use a file explorer and move it to the root folder of your device.

    3) rename it to "update.zip".

    4) Got to Settings => System Update => "Select the 3 dots top right and select 'Use the install package update'

    Repeat these steps for each individual update

    The order of updates are (this is from the stock Chinese rom version of TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.211_ST_210730_qpst

    1) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_12.6.238_ST_210824_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108.zip - download link https://mega.nz/file/4h13DI4R#09imnGFk0c16CPNG635AYIClewuF5rXkiaj3xqGmjA8

    2) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.346_ST_211108_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115.zip - download link https://mega.nz/file/l5ljWChS#rL44OM0-PuIFGZWSwr46pJr5S8NcY0JuYH7ctEeVTNs

    3) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.364_ST_211115_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5522973/

    4) TB-J716F_CN_OPEN_USER_Q00209.3_R_ZUI_13.0.430_ST_220113_to_TB-J716F_CN_OPEN_USER_Q00209.3_R_ZU...zip - download link https://forum.xda-developers.com/at...j716f_cn_open_user_q00209-3_r_zu-zip.5598667/

    So the version you need to be running before attempting to lock the bootloader is 13.1.555 so double check your version in settings => My Device

    @CleberJorge you might want to add this to your guide.

    Spent alot of time cracking this annoying issue, so hope it helps a few people out.
    *Note this procedure works as of 25/5/22, it may change if there's a new update.
    3
    Guys, I uploaded the update here if you're interested...