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

[zxcv88]

Yes, flash ZUI 14 first. I have LineageOS 19.1 installed.

Thanks man! Didn't know you should flash ZUI 14 first. I'm gonna try this with Corvus OS.

 

[eDooM85]

Latest LineageOS GSI + ZUI 14 has working auto rotate and camera

Auto brightness doesn't work out of the box but it should work after flashing this Magisk module.

Do you have?

Certified Google Playstore
SE Linux enforced
Playback on Netflix/HBO/Amazon/Youtube working (At lest on SD sinse you have widevine L3)?

 

[Ungeskriptet]

Do you have?

Certified Google Playstore
SE Linux enforced
Playback on Netflix/HBO/Amazon/Youtube working (At lest on SD sinse you have widevine L3)?

Idk about the rest but SELinux is permissive.

 

[zxcv88]

Nice, auto rotate working now.
For SELinux enforcing just flash this in magisk.

 

[A7mmud]

Nice, auto rotate working now.
For SELinux enforcing just flash this in magisk.

Did flashing the latest lineageos fixed auto rotation or I need to flash Zui to fix it ?

 

[zxcv88]

Did flashing the latest lineageos fixed auto rotation or I need to flash Zui to fix it ?

I use Corvus OS. I sideloaded this version of ZUI first and after that just follow the tutorial in this thread.

 

[vinaythoke]

Yes, flash ZUI 14 first. I have LineageOS 19.1 installed.

How did you manage to unlock the bootloader? Had you done it already or did it after updating to 14.0.127?
I'm on the latest ZUI right now and tried THIS method of unlocking the bootloader without sn.img file, but doesn't work for me. Can't run fastboot from EDL mode. Getting out of EDL doesn't work either as the device is then not detected by the fastboot or bootloader.

The regular method of unlocking the bootloader with my device's sn.img file doesn't work because I can't get sn.img file anymore using the given URLs. I have emailed Lenovo guys requesting the file but seeing other members' experiences here, I don't think that will ever happen.

I do think Android 12 is the last Android TB-J716F will get, and was planning to move to GSI now that the device has the latest firmware. But nothing works.

ANY HELP IS HIGHLY APPRECIATED.

 

[Ungeskriptet]

How did you manage to unlock the bootloader? Had you done it already or did it after updating to 14.0.127?
I'm on the latest ZUI right now and tried THIS method of unlocking the bootloader without sn.img file, but doesn't work for me. Can't run fastboot from EDL mode. Getting out of EDL doesn't work either as the device is then not detected by the fastboot or bootloader.

The regular method of unlocking the bootloader with my device's sn.img file doesn't work because I can't get sn.img file anymore using the given URLs. I have emailed Lenovo guys requesting the file but seeing other members' experiences here, I don't think that will ever happen.

I do think Android 12 is the last Android TB-J716F will get, and was planning to move to GSI now that the device has the latest firmware. But nothing works.

ANY HELP IS HIGHLY APPRECIATED.

I unlocked my tablet normally with sn.img. Before unlocking I had to wait about eight hours for Lenovo to process my serial number after connecting to the internet first time. Have you tried that alternative BL unlock guide from lower firmware? If EDL does not work for you on Windows, you can try these steps from Linux.

 

[vinaythoke]

I unlocked my tablet normally with sn.img. Before unlocking I had to wait about eight hours for Lenovo to process my serial number after connecting to the internet first time. Have you tried that alternative BL unlock guide from lower firmware? If EDL does not work for you on Windows, you can try these steps from Linux.

I cannot get my device's sn.img file from Lenovo. They stopped giving that away? That's the reason I tried THIS method to unlock the bootloader with a generic sn.img file but somehow fastboot commands won't work after being in EDL (unless I restart, which then loses all the SN changes made using this method).

But thank you, I will try to do this the Linux way.

 

[vinaythoke]

I unlocked my tablet normally with sn.img. Before unlocking I had to wait about eight hours for Lenovo to process my serial number after connecting to the internet first time. Have you tried that alternative BL unlock guide from lower firmware? If EDL does not work for you on Windows, you can try these steps from Linux.

Hey mate, what's this "Alternative BL Unlock guide from lower firmware" that you mentioned? Could you point to the link, please? Thank you!

Edit: Never mind. Realized it's the same guide.

 

[eDooM85]

Do you have?

Certified Google Playstore
SE Linux enforced
Playback on Netflix/HBO/Amazon/Youtube working (At lest on SD sinse you have widevine L3)?

Answering my own question.

all of this is working if you use pixel experience Android 13
and as firmware base ZUI14

 

[mcdull]

Answering my own question.

all of this is working if you use pixel experience Android 13
and as firmware base ZUI14

Is pixel ROM good for tablet?

 

[eDooM85]

Is pixel ROM good for tablet?

Its way better than the current ZUI14, but things that doesn't work:
1) Hal Sensor (when you have the folio case then you close it doesn't turn off the screen)
2) Widevine L3 Obviously
3) Auto brightness (pretty much you have to set it up manually.

 

[mcdull]

Its way better than the current ZUI14, but things that doesn't work:
1) Hal Sensor (when you have the folio case then you close it doesn't turn off the screen)
2) Widevine L3 Obviously
3) Auto brightness (pretty much you have to set it up manually.

Hal and Auto brightness is a big issue to me, I use the original flip cover and keyboard.

 

[redblood252]

Latest LineageOS GSI + ZUI 14 has working auto rotate and camera

Auto brightness doesn't work out of the box but it should work after flashing this Magisk module.

View attachment 5753557

Could you give me links to do that on my tablet? Thank you

 

[redblood252]

Latest LineageOS GSI + ZUI 14 has working auto rotate and camera

Auto brightness doesn't work out of the box but it should work after flashing this Magisk module.

View attachment 5753557

Hello, I manage to wipe my device and install lineage how to add zui 14?

 

[eDooM85]

Hello, I manage to wipe my device and install lineage how to add zui 14?

He meant to be on ZUI 14.0.127 then install GSI lineageOS

 

[redblood252]

He meant to be on ZUI 14.0.127 then install GSI lineageOS

That’s exactly what I did.

 

[[email protected]]

Hal and Auto brightness is a big issue to me, I use the original flip cover and keyboard.

I have these complaints too. I hope they fix this in the next update.

 

[ayam01]

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

I tried to install a GSI ROM on this tablet, because there is only a chinese version available.
The tablet supports treble and I managed to get different GSI ROMs booting on it, but with a few annoying bugs I couldn't solve.
I thought I will share my experience here and maybe someone with more expierence can help to solve these problems.
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)
​

Requirements:

• Unlocked Bootloader​
• PC with ADB and Fastboot Tool + Universal ADB Driver​
• Download vbmeta.img (extracted from Stock ROM)​
• Download GSI ROM with naming like "arm64-b?Z-lite.img" (if you want GAPPs use image "arm64-bgZ-lite.img", sideloading doesn't work). In this guide I use the LiR-ROM​

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 system lir-v313+211012-arm64-bgZ-lite.img" and wait
7. Using volume keys on tablet select "Enter recovery" and then select "Wipe data/factory reset", reboot device.
8. Now it tries booting the ROM, after the "bootloader unlocked" warning, the lenovo logo should show up. Here I often had the problem that it didn't boot at first try. If, after waiting for 20-30s the ROM doesn't boot, press the power button to reboot tablet. After trying it a few times it always worked. This problem only occurs at first boot up, after setting the ROM up, it boots normally.
9. Now after booting, when using the LiR-ROM, you have to set up the tablet. In the fourth setup window, the ROM is asking for a SIM-Card even though the tablet doesn't support GSM. You can skip this by entering to adb commands "adb shell settings put secure user_setup_complete 1" and "adb shell settings put global device_provisioned 1". After sending these two commands, then pressing return in the setup, it should complete.
10. After successfully booting, the "Home" and "Tasks" button is missing. After a reboot they should appear and work normally but I recommend to set a lock pin first.

Known Bugs/Problems:
AutoRotate

When activating autorotate, the display is always orientated in the wrong direction by 270°.​

I tried to solve it with two different commands added to build.prop:​

1. "ro.sf.hwrotation=270" -> didn't do anything​
2. "ro.surface_flinger.primary_display_orientation=ORIENTATION_270" -> the screen rotated in right direction, but the touchpanel did not.​

Workaround: using an rotation controll app, but I'm not a fan of it.​

Overlay - AutoBrighness, Magnetic Screen Lock, Battery Save Mode

I tried creating an overlay according to the instructions but sadly the "FrameworksResTarget.apk" from the vendor folder doesn't provide much configuration information including for the above mentioned issues. I tested values from similiar devices but didn't have any success. If someone is interested to try, here are the files I extracted from the tablet and the current overlay I created.​

Hopefully, someone here knows how to solve these problems.

I'm currently on zui 14.
I tried to install pixel experience gsi but getting error.

I'm using this post method to installed it as well as using the vbmeta.img that this post provided.

can someone guide me to install the gsi on zui 14?