I did not have any success yet. All appears to install nicely, however root is not detectable. These I used:
With SuperSU root checkers immediately detect that no root is available, with magisk it takes a minute or so until it recognizes that no root here.
Do you have any ideas? Rebooting between the steps made trouble, doing them one after the other berfore rebooting also die not work. Did I miss smth.?
I will go back to a factory image before trying once again, however if you have some hints I will gladly try them out.
Thanks in advance