Hi,
I am trying this on my OnePlus 7 OxygenOS Q-Beta 4 Dev.-Preview.
The backup went through without errors.
Since there is no TWRP for Q, is it possible to flash this any other way?
I'll be glad to be a beta tester for Android 10.
Cheers
Forget q for now. Is there a twrp for your device? Thats all you need to ask yourself. If so, go find it. Now.