Hello everyone
I have the Avic F920BT. It was in the car when I bought it. No official update were available, maps and system dated 2010....I often drove through the fields on the display . So I searched this forum to be able to update my Avic.
I used this method to work arounds the password: ROnS, posted 7 sept 2017. The map update, I found in this post: Ayan 4 Oct 2017.
30 minutes later, everything OK!
Thank you very much!