I am not new to flashing ROMs. Actually I do it, since back then when the recovery was part of the kernel and Xiaomi Phones had root-access built in. However, apart from an old HTC device I once had, I haven't had an A/B partitioned ...
AND (a little Christmas gift) I found the solution!
Do a nice "rm -rf /data/per_boot" from a root terminal, then it will backup your data partition. If not, copy log to SD card and watch the error message closely
I had problems with Google Play Services myself. Did these steps again and it worked fine. There had been trouble installing the gapps package.
I use open gapps pico successfully
Note: The ROM gets installed into the OTHER slot than the one cu...
Thanks and sorry for post here.
The file which blocks your update IS the per_boot folder.
The only thing you missed was spaces. Try these commands:
rm -rf per_boot
it is crucial to have a ' ' space between "rm" and "-rf...
Very strange. My old MiA1 (now bricked) lost LTE band 20 somewhere back in april while testing various custom roms. Never got the band back even with the help of low level qualcomm tools. I too live in germany but I'm on o2 and in my rural hometow...