Du könntest das hier versuchen, falls möglich.
Hi, there is another topic (how can I link them?) Link where I was able to find the way out. Thanks for your support, too.
I do not understand this. Could you repair and finish your update as described in the linked post?
Yes. After some research I was able to connect via Mac terminal and use the occ codes. New territory for me. There were no app installed before, I had do do this first via Marketplace and FTP. Finally the update ran successfully.