Do not fear Fellfrosch, i have a working Pro¹ again thanks to TheKit fixing it via remote terminal session.

Thanks again.
Hopefully you can find a way to connect into your device and follow Adams instructions, else its about asking TheKit the right questions since he figured out how to get my USB network up short/long enough to be able to do the fix.
Man, that was a terminal blockbuster for humble noob me to watch. Infinity War was boring in comparison.