Decided to create a new thread on the SE forums since we now have our own forum.
So phhusson made a treble GSI for Android P and I got further with it than with any of the other GSIs.
WIFI and BLUETOOTH both work with this GSI.
Here's what I did to get it working (your mileage may vary and I am not responsible for any broken/ bricked devices as a result of these instructions, ALWAYS MAKE SURE YOU TAKE A FULL TWRP BACKUP OF YOUR DEVICE BEFORE ATTEMPTING THIS):
Unlock bootloader.
Download the latest TWRP from here and flash it. Make sure you're running at least version 3.2.3.
Boot into TWRP, tap on Wipe and then tap on "Format Data" and enter yes. Once it's done, reboot into recovery.
Next flash the latest Xiaomi.EU MiUI 10 Beta rom from here. Download it, transfer it to your phone's storage and then use TWRP to install the zip.
After it has installed, tap on Wipe on the TWRP main menu and swipe to factory reset.
Next flash the treble GSI for Lineage 15.1 from here. Download it, transfer to your phone's storage and then use TWRP to install the image file by tapping on Install, then "Install Image" on the bottom right and then select the Lineage image you transferred earlier. Select the "system" partition on the next screen and install.
Now reboot your phone and wait for Lineage to boot up. Once it has booted successfully, reboot into recovery. Use TWRP to factory reset your device again.
Now follow the steps for an A-Only device on this article
*BUT BEFORE YOU REBOOT, GO INTO THE ADVANCED MENU ON TWRP AND TAP ON "INSTALL ROOT"*. Once Magisk has been installed, reboot into system and hopefully you should boot. If not, try rebooting again and it should work.
Bugs (that I know of):
Audio is really broken and sounds horrible even with headphones plugged in.
You can fix media audio only by flashing the ViPER4Android module through Magisk Manager.
This doesn't fix it for ringtone/notification or alarms though.
FIX FOR NOTCH:
https://github.com/pravsterrr/treble-overlay-xiaomi-mi8se/blob/master/dist/treble-overlay-xiaomi-mi8se.apk?raw=true
Download the APK.
Boot into TWRP.
Mount vendor partition.
Use ADB to move the APK to "/vendor/overlay/"
let me know if you find anything.
So phhusson made a treble GSI for Android P and I got further with it than with any of the other GSIs.
WIFI and BLUETOOTH both work with this GSI.
Here's what I did to get it working (your mileage may vary and I am not responsible for any broken/ bricked devices as a result of these instructions, ALWAYS MAKE SURE YOU TAKE A FULL TWRP BACKUP OF YOUR DEVICE BEFORE ATTEMPTING THIS):
Unlock bootloader.
Download the latest TWRP from here and flash it. Make sure you're running at least version 3.2.3.
Boot into TWRP, tap on Wipe and then tap on "Format Data" and enter yes. Once it's done, reboot into recovery.
Next flash the latest Xiaomi.EU MiUI 10 Beta rom from here. Download it, transfer it to your phone's storage and then use TWRP to install the zip.
After it has installed, tap on Wipe on the TWRP main menu and swipe to factory reset.
Next flash the treble GSI for Lineage 15.1 from here. Download it, transfer to your phone's storage and then use TWRP to install the image file by tapping on Install, then "Install Image" on the bottom right and then select the Lineage image you transferred earlier. Select the "system" partition on the next screen and install.
Now reboot your phone and wait for Lineage to boot up. Once it has booted successfully, reboot into recovery. Use TWRP to factory reset your device again.
Now follow the steps for an A-Only device on this article
*BUT BEFORE YOU REBOOT, GO INTO THE ADVANCED MENU ON TWRP AND TAP ON "INSTALL ROOT"*. Once Magisk has been installed, reboot into system and hopefully you should boot. If not, try rebooting again and it should work.
Bugs (that I know of):
Audio is really broken and sounds horrible even with headphones plugged in.
You can fix media audio only by flashing the ViPER4Android module through Magisk Manager.
This doesn't fix it for ringtone/notification or alarms though.
FIX FOR NOTCH:
https://github.com/pravsterrr/treble-overlay-xiaomi-mi8se/blob/master/dist/treble-overlay-xiaomi-mi8se.apk?raw=true
Download the APK.
Boot into TWRP.
Mount vendor partition.
Use ADB to move the APK to "/vendor/overlay/"
let me know if you find anything.
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