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

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Dennesy

New member
Jan 9, 2022
3
0
Hi, I had the same issue and I solve it do it what you say but now it appears a new one
issue.jpg
issue2.jpg


any idea? Thanks
 

Dennesy

New member
Jan 9, 2022
3
0
Has anyone had problems with the screen?
Mine suffers a lot from image retention, when displaying a black and white image for example and than switching to something else, for example a gray image, the previous image is still visible as a "ghost" layer ( try to set brightness to max to see better the issue).
In addition the display in low brightness (more visible in the dark) has some kind of lines on the screen. See the end of this article to understand: https://inf.news/en/digital/eb8ffd7...Roc1kjgzTFk-1635672728-0-gqNtZGzNApCjcnBszQgl
all of us I think, it is a OLED problem. It´s not only your device.
 

MrCrayon

Senior Member
Sep 6, 2013
193
60
Xiaomi Redmi Note 4
Lenovo P11
I had the same eror with TB-J706F: "Failed MetaCli not found".
I was trying to flash using Windows in a Virtual machine on Linux, I solved it running Windows on another laptop.

As far as I understand that error means there is something wrong with either drivers, mode, cable or port.
Check first in Device Manager that Qualcomm HS-USB QDLoader 9008 is correctly detected and select id in QFIL.
If that's ok try to change port then cable and at last drivers or PC.
 

venom117x

New member
Feb 17, 2016
2
0
Hi! can someone help me with my Tab? i've properly installed all needed drivers, but still the QFIL keeps showing errors... sigh.... i'm using windows 10 laptop tried also the "disable driver signature" but no to avail. i'm not really that newbie in flashing roms and stock roms but first time on QFIL.
 

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biceman

Member
Apr 28, 2011
45
12
Hi! can someone help me with my Tab? i've properly installed all needed drivers, but still the QFIL keeps showing errors... sigh.... i'm using windows 10 laptop tried also the "disable driver signature" but no to avail. i'm not really that newbie in flashing roms and stock roms but first time on QFIL.
Check the steps 1-3!

 

Neodiud

Member
Oct 19, 2021
7
0
Help me please
 

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I'm still on L3 with 364. I don't care. NF has become a channel for teenagers. The multi-window system is a disaster. Good hardware lacking in software. Support
between nothing and zero. For this particular model, but I imagine the rest.
 

dolezelt

Member
Feb 26, 2018
29
9
Hello
I have problem with USB debugging TURNS ON BY IS SELF after installing original firmware and locking off the tablet.
Have anybody idea how to disable USB debugging permanently (Turning off in setup does not work permanently)

(Maybe original firmware downloaded from first page of this thread is somehow changed - I think that is not usal, that is developer mode enabled at clean firmware installation.)
 

Neodiud

Member
Oct 19, 2021
7
0
That's good to hear. I am just wondering if this will be the same instruction set for the older Pro model. I have mine in global rom (android 11) but wanted the chinese rom. One possible issue is that if it is successful, I might be stucked with android 10 or are there any chinese rom (android 11) for the Pro 2020? If I am not mistaken, the only advantage on the older model's chinese rom is that it has OTA update.
Help me please
 

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iciclevan

New member
Jan 14, 2022
3
0
Hi-
Could someone please tell me what I'm doing wrong?
I have the TB-J716F with Global Rom, purchased from Banggood.
I'm set up to install the stock Chinese ROM as described by various people in this thread
(USB debugging ON, Qualcomm drivers installed, ROM downloaded and added to the QPST bin folder, etc.)
I was expecting to sweat it out a bit during the process but I find that I can't even get the device to be recognised with platform tools.
Every time I enter ".\adb reboot edl" my device shuts down and I have to hold the power button down for about 20 seconds before it will turn on.
Am I missing something?
 

MrCrayon

Senior Member
Sep 6, 2013
193
60
Xiaomi Redmi Note 4
Lenovo P11
Every time I enter ".\adb reboot edl" my device shuts down and I have to hold the power button down for about 20 seconds before it will turn on.
That sounds like you are in edl mode, what shows up in Device manager?

Other way to enter EDL mode is turn off tablet, hold volume up, plug in cable, release volume up after 2-3 seconds.
(I have a different model but I think it's the same way)
 

iciclevan

New member
Jan 14, 2022
3
0
That sounds like you are in edl mode, what shows up in Device manager?

Other way to enter EDL mode is turn off tablet, hold volume up, plug in cable, release volume up after 2-3 seconds.
(I have a different model but I think it's the same way)
That's what I was trying to do but after the tablet shuts down my device can't be seen anywhere (Device manager, adb, etc.)
The only thing I forgot to do was restart the PC after installing the Qualcomm driver so maybe I'll try again tomorrow...
Another odd thing is that that none of my devices are listed in Device Manager unless i tick "show hidden devices"...is that normal?
 

MrCrayon

Senior Member
Sep 6, 2013
193
60
Xiaomi Redmi Note 4
Lenovo P11
Another odd thing is that that none of my devices are listed in Device Manager unless i tick "show hidden devices"...is that normal?
I can tell you that I could see the device only when plugged in without ticking "sdhow hidden devices".
I am not that familiar with Windows but it looks like when you tick "show hidden devices" it shows additionally any device that was previously recognized but not currently plugged.
 

iciclevan

New member
Jan 14, 2022
3
0
Ok, this is where I'm at now, device was still visible but then I ran into this error.
Tried deleting the adb keys and letting it regenerate but now I'm back to having the tablet shut down after trying to enter edl mode.

PS C:\platform-tools> .\adb reboot edl
* daemon not running; starting now at tcp:5037
* daemon started successfully
error: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
PS C:\platform-tools>
 

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  • 1
    View attachment 5611593
    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 ...
    Hi again!

    There's no problem, really. If the tablet is the only thing connected to your computer, that should be the one.
    1
    Hi again!

    There's no problem, really. If the tablet is the only thing connected to your computer, that should be the one.
    thanks dude, i will make the test during tonight .. wish me luck...
  • 14
    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.
    3
    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.
    3
    Guys, I uploaded the update here if you're interested...