Development [TB-J716F] (Unofficial) TWRP for Lenovo Xiaoxin Pad Pro 2021

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Hi so I broke b_partition of the device need help/guide in getting the required files to flash to fix the issues. Using the fastboot --set-active b keep showing unknown option. Likewise flashing the stock rom using QFIL doesnt fix the issues . Not sure what i did wrong along the way.... Also tried flash fastboot method with the stock rom files doesnt help too.
The correct command is fastboot set_active b.

QFIL would actually fix the issue easily as it reflashes the partition table.
 
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amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold

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amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold
Are you sure it's the latest? What does fastboot --version and did you it download from here?
yes downloaded it from there still wouldnt work. In any case having issues now even with flashing via QFIL its showing system is rooted not sure why thats why most probably is the a/b issues of it.
 

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amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold
I managed to repartition and flash the images manually. However, I could not fix widevine status f3, if im not mistaken, it was affected by modem/persist/efs partition. I managed to backup using TWRP and restore function is ok. But i got bootloop after restore 😆.
HI was wondering where did you get specific files to flash manually via fastboot since iam having issues with it.
 
Jan 28, 2021
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1
I've tried to flash an update zip by TWRP but I got an error message of slot A/B, so I've changed to slot B just for trying and rebooted it. now I can't even turn on the tablet, it doesn't give a sign even if I try to charge or pressing the power or volume buttons. any idea of how can I fix this and change it back to slot A?
 
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amiruls

Member
Jan 10, 2014
26
14
Lenovo P11
Mi MIX Fold
I've tried to flash an update zip by TWRP but I got an error message of slot A/B, so I've changed to slot B just for trying and rebooted it. now I can't even turn on the tablet, it doesn't give a sign even if I try to charge or pressing the power or volume buttons. any idea of how can I fix this and change it back to slot A?
You seem to have related issues with the twrp like me which happens to have the same issues, the only to fix is through EDL hence via flashing stock rom, in the forum there's a way to flash back rom via QFIL EDL mode
 
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Jan 28, 2021
8
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You seem to have related issues with the twrp like me which happens to have the same issues, the only to fix is through EDL hence via flashing stock rom, in the forum there's a way to flash back rom via QFIL EDL mode
ty for the reply, I was able to flash by QFIL only after selecting Reset Machine on settings, now device is working fine. only thing that I wasn't able to do is lock the bootloader, every time I try I'm getting the corrupt message, but not a real problem to me. I've updated it yesterday to ZUI 13.1.555
 
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Feb 15, 2011
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Hello,
I bought the US version of the Lenovo P12 Pro From Costco.com, just want to add, US revisions do not need to go to "https://www.zui.com/iunlock" an enter you serial. After 3 days of trying, it never recognized my serial. instead I just started throwing Fastboot Unlock commands at it. The one that stuck was "fastboot flashing unlock" which brought me to the Prompt to Unlock the bootloader screen. Your second version of TWRP worked great with P12 Pro for Flashing Magisk. I'm on S212071_22022_ROW however its already telling me S212131_22040010_Q00243_ROW is available for update.
 
Hello,
I bought the US version of the Lenovo P12 Pro From Costco.com, just want to add, US revisions do not need to go to "https://www.zui.com/iunlock" an enter you serial. After 3 days of trying, it never recognized my serial. instead I just started throwing Fastboot Unlock commands at it. The one that stuck was "fastboot flashing unlock" which brought me to the Prompt to Unlock the bootloader screen. Your second version of TWRP worked great with P12 Pro for Flashing Magisk. I'm on S212071_22022_ROW however its already telling me S212131_22040010_Q00243_ROW is available for update.
Lenovo P12 Pro is a different device, this TWRP is made for TB-J716F.

There is a port for TB-Q706F here though if you have that model.
 

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    Team Win Recovery Project 3.x, or twrp3 for short, is a custom recovery built with ease of use and customization in mind. Its a fully touch driven user interface no more volume rocker or power buttons to mash. The GUI is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.

    Working:​

    • Decryption
    • USB
    • Wiping
    • Fastbootd
    • Touch
    • ADB Sideload
    • Formatting Data (Sometimes it errors out after wiping data but it can be fixed by rebooting and trying again.)
    • Toybox

    Not working:​

    • Vibration (Low priority)
    • SD card (Should be possible to mount it manually for now)

    Download: Android FileHost
    Device tree: android_device_lenovo_J716F
    Kernel: Using prebuilt kernel, Lenovo hasn't yet released the source :(

    How to flash to your current slot:
    1. Unlock the bootloader
    2. Reboot into bootloader:
      1. Form powered-on state: adb reboot bootloader
      2. Or from powered-off state: Hold Power + Volume Down
    3. Flash recovery: fastboot flash recovery twrp-3.6.0_11-0-J716F.img
    4. Reboot to recovery: fastboot reboot recovery
    5. Done!
    4
    Will you be working on any ROMS in the future..or do you use a GSI?
    For now I'm using the GSI, but I do want to eventually port LineageOS to it (I have only little experience so this could take a long time). I'd also like to get mainline Linux booting on this tablet, since SD865 is supported in Linux and SD870 is an overclocked SD865.

    EDIT: I've been using the GSI for some time now and the performance is great. I'll try looking into the issues the GSI has because if the GSI works good there's no need to make a new and seperate LineageOS port. I would need to learn how to do that first though so it can take some time.
    3
    Just flashed this without any issues.
    Thanks for your contribution!
    2
    So now we can install gsi through twrp?
    Not so easy. Installing it through fastboot is easier.