@ianus another way:
Install UT Tweak Tool and select system / restart unity 8

@michi2302 Is your phone in recovery mode?
Check adb devices

@flohack Thanks! It still work!

@flohack Maybe I should switch to Cloud Music.

Here's things don't work for me :
music streaming when screen off
Libertine (makedev error)
mobile data(but work with the gsi image)

@flohack Thanks!

@flohack Thanks! BTW,How can I install updates?

@flohack I mean... Do we have some tutorial? I just can't make it work on my oneplus 5t.

How to install ?