Good day everyone!
First of all, thanks for your guide! i used Flashfire and it was all done in 2 minutes with one reboot.
(In Flashfire i used "Flash Zip or OTA", selected the "xposed-v85.1-sdk23-arm64-custom-build-by-wanam-20160530.zip" and the ...
For me nothing works on v.13.2....
Only thing that has done the trick is using
https://forum.xda-developers.com/apps/magisk/xiaomi-safetynet-fix-t3600431 (the beta release)