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

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raynhw

Member
Aug 23, 2021
6
0
you need to update the stock to the version which you've previously installed before going to GSI.
If it was the latest 13.1.x and you didn't backup the update zip file, you'll need to wait until someone shares it here before you can lock BL again
Thanks for the advice. i was able to install the stock rom and update all the way to the version before going to GSI. will that be the same? Still i cant lock the bootloader without the system showing corrupted..
 

salzzz

Senior Member
Aug 27, 2011
125
12
Thanks for the advice. i was able to install the stock rom and update all the way to the version before going to GSI. will that be the same? Still i cant lock the bootloader without the system showing corrupted..
try updating to 13.1.555
 

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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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Maximozavr

New member
Feb 7, 2022
3
0
Dear friends, please give a link to the latest firmware for Tb-j716f (Stock Rom).

My version is very outdated...
1651496748109.jpg
 

Knony360

Member
Apr 11, 2013
10
1
Hello guys quick question can someone check is with the official rom can use the key mapper or the floating windows, example youtube floating window or panda gamepad pro.. I'm not able to do that with my actual Rom, and I'm looking to flash to the official Chinese and lock the bootloader in order to solve this issues, actual y have the modified version as a CN global and also the bootloader unlocked.. I hope you can help me guys... Good to know about this thread
 

Knony360

Member
Apr 11, 2013
10
1
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:View attachment 5434141
  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:View attachment 5434145
  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.
View attachment 5434149

Done, Stock-ROM should boot now.
dude... for some reason i only can enter to the FFBM mode when i press power and up... please can you help me to know how to enter to EDL mode... im a noob in the tablet section
 

ThiagoXBS

Member
Apr 23, 2022
12
0
Brasil
dude... for some reason i only can enter to the FFBM mode when i press power and up... please can you help me to know how to enter to EDL mode... im a noob in the tablet section
You just need to hold the Power up for a few seconds, then connect the usb cable to the PC (still pressing the button). Your device should appear in the device manager.
 

Knony360

Member
Apr 11, 2013
10
1
You just need to hold the Power up for a few seconds, then connect the usb cable to the PC (still pressing the button). Your device should appear in the device manager.
The screen should remain in black? Or it will appear a different image just to know if I doing it right.. To avoid the gray screen FFBM
 

Knony360

Member
Apr 11, 2013
10
1
xiaoxin pad.png

Finally i enter to EDL mode by ADB ....the thing is that i get a different name code i get qloader 9008 com 3 instead Diag com 4 like the picture...is this a problem or i need to get the diag com 4 ...
 

Flammidus

New member
May 11, 2022
2
0
Dear fri
Hi guys, thanks for the informative guide.

I have a bit of an issue, just bought mine off Aliexpress and didn't realize it was on the Global Rom. When I received it the bootloader was already unlocked with the Global Rom installed.

So I followed the guide to flash the Stock Rom but every time I try to lock the bootloader I can't boot up and get the error:

"Your device is corrupt. It can't be trusted and will not boot

Visit this link on another device:

g.co/ABH"


I am able to unlock and reinstall the stock rom through QFIL but again can't lock the bootloader or I get the same error again. I have tried OTA updates (which still works without locking), I have tried installing the updates that I downloaded here, and I have tried rooting.... Nothing works to allow me to lock the bootloader.

My primary concern is getting Widevine L1 for Netflix (can't see Netflix in the Play Store either).

Any suggestions to lock the bootloader or work around for Widevine?


Thanks!
How do you unlock bootloader with QFIL? I am currently stuck in bootloop to fastboot mode as my device is corrupt after trying to lock bootloader on stock rom.. Please anyone, any help is appreciated
 

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, have you tried to install the chinese rom again after unlocking the bootloader? I believe that the only way to lock the bootloader without receiving errors indicating that the p11 pro was corrupted is: global rom + last zui 13 ota + bootloader lock
 
Last edited:

ThiagoXBS

Member
Apr 23, 2022
12
0
Brasil
I will try to install the stock rom again, but this time I will update the zui 13 via ota. then I will try to lock the bootloader again.
 

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  • 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...