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

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Tropaion

Member
Jan 4, 2021
42
27
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.
 
Last edited:

Tropaion

Member
Jan 4, 2021
42
27
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".
 

Tropaion

Member
Jan 4, 2021
42
27
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.
 
Oct 16, 2021
13
0
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

Member
Jan 20, 2020
38
3
did you try to relock bootloader then flash stock rom again ? will this method can bring back L1 DRM ?
 

Cris74m

Member
Dec 30, 2015
12
1
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

Member
Jan 4, 2021
42
27
@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

Member
Dec 30, 2015
12
1
@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

Member
Dec 30, 2015
12
1
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

Member
Jan 4, 2021
42
27
@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?
 

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  • 4
    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.
    2
    Stick with that ROM and any subsequent updates to avoid having to deal with the issues as seen in the post directly above yours.

    In general other than the security app and the "recent searches" (when you swipe up from the middle of the home screen) which is in chinese i'm actually pretty happy with th

    Thanks. I think it is a Chinese rom. It is also widevine L1 and has no other languages except Chinese and English. A few apps however are in Chinese and cannot be uninstalled so I just disabled them. So far, all Google apps that I install are ok.
    Everything can be uninstalled using ADB, even vital system apps, so take great care!
    Use ADB AppControl, it's a lot easier to use! (I have the Extended Version, since I thought supporting this awesome project is vital for it to become even better.)
    I've uninstalled all the bloat I found unnecessary, like Lenovo's File Manager, Clock, the ZUI Home itself (since I use Nova Launcher Prime)...
    2
    Guys, I uploaded the update here if you're interested...
    2
    Wanted to say thanks to you all (especially to
    Tropaion and PHRS )
    I Followed the instructions and Managed to flash the stock rom without any problems. to be honest I was surprised that nothing went wrong! :giggle:

    Also locked the bootloader and now I have widevine L1 (which was all the point in buying the tablet in the first place) and the stock rom has actually more options to control screen color and temperature.
    2
    Thx to @Tropaion and @PHRS ,i have problem with sahara and fhloader fail, trying using other computer and its work!, the second pc iam using, i haven't instaled any qualcom driver on it after instaling necessary driver and tool its work like charm, Have bootloader locked after that
  • 7
    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.
    4
    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
    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
    2
    It has multi-language and on the product page banggood says it comes rooted with Chinese ROM with play store installed and multi-languages.
    If it was original Chinese rom, it should have update option. Am I right?
    Hello @sabaku_chris! Your tablet has unofficial Chinese ROM.

    The official Chinese ROM does not come with the Google Play Store pre-installed and only comes in two languages, English and Chinese. It comes with firmware upgrade option (via OTA), with Widevine L1 and, if you install Google Play Store, comes with Play Protect Certificate.

    An advice: But if you don't need these features, continue with the version that was already installed on it. In case of doubt, do not change the ROM.
    2
    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.