So far no luck, will try to put the original password.dat file back and see if it makes a difference.
but please keep your suggestions coming.
if it fails is it an options to create a dump out of a F930 (all the directories etc) and then copy it back on the F940? (my other car has a F930 radio)
EDIT:
Just tried the Original file which contains the password but it does not even ask for a password.
I even checked the log files, as far as they are written in several directories, but no error or what so ever.
the weird thing is sometimes after rebooting I get the question if I wa