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

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sorrowtorn

Member
Feb 17, 2015
8
1
Kuala Lumpur
OnePlus 7 Pro
Also, does anyone has issues with Bluetooth audio? Was able to connect, but no audio was coming out. Also only SBC codec was available. I tried this fix:
https://forum.xda-developers.com/t/...io-aptx-bluetooth-in-call-in-gsi-rom.4455275/
but doesn't seem to work. I'm on PE+ Android 13 GSI
Okay managed to fix this. Turns out just need to mess with the settings a bit.
Only left adaptive brightness. Anyone has any solution to this? This tablet is becoming very usable in GSI.
 

Tenzinjamyang

Senior Member
Jan 3, 2016
97
11
Xiaomi 13
Okay managed to fix this. Turns out just need to mess with the settings a bit.
Only left adaptive brightness. Anyone has any solution to this? This tablet is becoming very usable in GSI.
does smart cover work?
 

Xssia

Member
Jun 2, 2021
14
1
Were you able to install it on ZUI 14? Everything working fine?
I'm planning to install GSI, too. Please let me know if there are any caveats to look for. I don't want to brick the device and waste time fixing it.

Thank you!
Have you done it ?
And what vbmeta you used ?
Thank you im on zui 14 and want to use evolution x or corvus gsi
 

renkesheng

Member
Jun 19, 2018
12
0
Okay managed to fix this. Turns out just need to mess with the settings a bit.
Only left adaptive brightness. Anyone has any solution to this? This tablet is becoming very usable in GSI.
Are you have this issue: while playing video, the sound came from wrong speakers, the left channel sound came from downside speaker, and the right channel sound came from upside speaker?
 

hawk1500

Senior Member
Apr 12, 2008
144
32
I installed the latest pixel experience plus gsi via DSU loader and it does support the keyboard cover (and I didn't even update to ZUI 14). The only button I couldn't get to work is the back button. Autorotate is still messed up, so I will need to find the magisk module. The tweaks in the settings seem to fix the bluetooth audio problem. No auto brightness, I think, and smart cover lock doesn't work still. It's looking pretty good though...I think I can live with it and will install it.
 
I installed the latest pixel experience plus gsi via DSU loader and it does support the keyboard cover (and I didn't even update to ZUI 14). The only button I couldn't get to work is the back button. Autorotate is still messed up, so I will need to find the magisk module. The tweaks in the settings seem to fix the bluetooth audio problem. No auto brightness, I think, and smart cover lock doesn't work still. It's looking pretty good though...I think I can live with it and will install it.
Update to latest ZUI 14 before flashing GSI to fix auto-rotation
 
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Xssia

Member
Jun 2, 2021
14
1
I installed the latest pixel experience plus gsi via DSU loader and it does support the keyboard cover (and I didn't even update to ZUI 14). The only button I couldn't get to work is the back button. Autorotate is still messed up, so I will need to find the magisk module. The tweaks in the settings seem to fix the bluetooth audio problem. No auto brightness, I think, and smart cover lock doesn't work still. It's looking pretty good though...I think I can live with it and will install it.
Zui 14 fixes most of those problems
 
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djgje

Member
Jan 11, 2022
9
0
Huawei Watch
Hello,
so, is there a new version or a new guide to install propely a GSI ROM and get it working without any issue like you did?

Thanks in advance
 
Hello,
so, is there a new version or a new guide to install propely a GSI ROM and get it working without any issue like you did?

Thanks in advance
Flash the latest ZUI 14 (14.0.127 as of now) before flashing GSI. You only have to follow this guide up to step 7 if you updated. I personally use LineageOS 20 TrebleDroid from here: https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-td. If you want it too you should choose an image for arm64 A/B devices without vndklite
 
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djgje

Member
Jan 11, 2022
9
0
Huawei Watch
Flash the latest ZUI 14 (14.0.127 as of now) before flashing GSI. You only have to follow this guide up to step 7 if you updated. I personally use LineageOS 20 TrebleDroid from here: https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-td. If you want it too you should choose an image for arm64 A/B devices without vndklite
Ok, I'm already in 14.0.127! So I just have to follow the guide in post #1 up to step 7 and I will have a fully working tablet? My concern is to get the tablet in French for my gf because the current ROM is not totally translated and I still see Chinese characters even if set in English ...

So if yes, which file should I choose? lineage-20.0-20230507-UNOFFICIAL-arm64_bgN.img.xz I guess?
 
Ok, I'm already in 14.0.127! So I just have to follow the guide in post #1 up to step 7 and I will have a fully working tablet? My concern is to get the tablet in French for my gf because the current ROM is not totally translated and I still see Chinese characters even if set in English ...

So if yes, which file should I choose? lineage-20.0-20230507-UNOFFICIAL-arm64_bgN.img.xz I guess?
Yes, that's the right image if you want Google apps. You will have to extract the image file for flashing with fastboot
 
Last edited:

djgje

Member
Jan 11, 2022
9
0
Huawei Watch
So, just to give you an update, I'm now running LineageOS 20 on my TB-J716F tablet.
Everything seems to work properly, except an issue with my Huawei Freebuds pro.
I'm able to connect them and pair with the tablet, but I can't get any sound in my EarPods... Even if I selected the media output on the bluetooth device, I don't ear anything, nor from chrome, nor from YouTube or any other app neither...
If someone has a fix for that it would be really appreciated. Currently that the only issue that I saw.
Thanks in advance and regards,

Jerome
 

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    How to install GSI ROM - Xiaoxin Pad Pro 2021 [TB-J716F] - Update

    My daily driver is now an GSI ROM without any bugs but two small inconveniences.
    I tried a few ROMS and the best working for me is LineageOS 20, but only the lineage-20-td build.
    Your data will be deleted, try at your own risk.

    Treble Device Information (Treble Info):
    Required Image: system-arm64-ab.img.xz
    Supports modern version of treble and uses VNDK30.0
    Supports System-as-Root, uses A/B operating system
    Supports seamless upgrades and uses dynamic partitions (super partition)​

    Important:
    For the GSI ROM to work correctly, you MUST update your tablet to the latest ZUI-Version, but you should at least have ZUI14.​
    Requirements:
    Installation:
    1. Go to Settings ->System -> About Phone, tab on it until developer settings are enabled.
    2. Go to Developer Settings and enable USB Debugging, allow USB-Debugging if tablets asks.
    3. Reboot to bootloader: adb reboot bootloader
    4. Flash vbmeta.img: fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img, you only need to flash it once
    5. Reboot to fastbootd: fastboot reboot fastboot
    6. Flash GSI-ROM: fastboot flash lineage-20.0-xxxxxxxx-UNOFFICIAL-arm64_bgN.img and wait
    7. Use the volume keys to select Enter recovery
    8. In the recovery mode select Wipe data/factory reset and reboot the device.
    Updating:
    1. Reboot to fastbootd: adb reboot fastboot
    2. Flash your latest GSI-ROM: fastboot flash lineage-20.0-xxxxxxxx-UNOFFICIAL-arm64_bgN.img
    3. In menu choose Reboot system now
    Known Bugs/Problems:
    Stock Launcher displaying Folders and Names incorrectly:
    Install different launcher, for example Nova Launcher​
    Low Minimum Brightness:
    Don't turn down your brightness to low, it's impossible to see anything.​
    Magnet Cover not working:
    Enabling display via magnet when opening cover not working.​
    Battery drainage:
    In default configuration the GSI ROM doesn't disable display when locked but shows the time with very low brightness. This surprisingly massively drains the battery, just disable it. For this, go to Settings->Phh Treble Settings->Customization features->System UI Tuner->Ambiend Display and turn off Always on
    4
    We should spam this forum thread, maybe then they will eventually react :D
    4
    After a lot of jumping through hoops, I was able to get custom ROMs running on the tablet. Though I do want to share my experience with it.

    I chose to run BlissOS 15.3 on it the first time, and it worked quite well, despite the known bugs such as the rotation, adaptive brightness not working, and the phhTreble settings not working either. (Not sure if it is specific to the ROM but there's that.)

    A few things I noticed, TWRP would encrypt the partitions if you enabled a password on the system, and the decryption password is not the same as the one you set as the system password.

    Another thing is setting the screen cutout to anything else other than the default, to which it will cause the whole screen to turn to black, rendering it useless unless you wipe the data in recovery mode.

    I also found out that by changing the boot animation, it doesn't actually write on it, turning the bootanimation.zip file to 0 bytes when moved, a.k.a. it becomes non-existent, and thus when rebooting the tablet, it will drastically slow your device down. Sometimes it even heats up the device, I can even feel it through the casing.

    I also tried other Android 12 GSIs, including Android 12L ones, but it had a few more issues, especially the navigation bar on Android 12L.

    So for me, BlissOS works fine the best for me.

    If anyone can find out how to fix these kinds of issues, let us know.

    Thanks to @Tropaion for the instruction guide!
    3
    @gunalarix8 Sadly not possible because there is no kernel source.
    @TheNiceGuy11999 I created a GitHub issue before.
    I you read through the first thread page you can finde everything you wanted.
    Lenovo uploaded the open source file for global variants. I could not find the chinese variants. 🤣 It was uploaded very recently. 😁