Did the upgrade yesterday on my F40BT with the script, and it worked flawlessly like described above.
Also did the Bluetooth update.
I'm just wondering if this was just a maps update (and was it EU then?) or if it was the maps and software, too.
I still might try to get rid of the nag screen, not to sure about that right now. It does not bother me that much. I might switch to a complete new headunit anyway.