Hello Jens,
I managed to get a new original motherboard and did a clean install with the software you provided (service tool) on a 1T HDD. Everything is now working again. The software has been updated to 7.04.01.1945 and the radio database was also updating.
Now I have a question: There are quite a lot of radio stations that don’t work. If I look at the last radio database update, it says 31-12-2021.
Is B&O no longer doing an update for the n.radio database?
Regards,
Roland