The first try I don't copy the file in the directoy 1xx but I see later when i was checked all
The file of the map are in the sd in the right place...... I saw many post for this
Now I made a gupdate.gcd with the boot.bin of my firmware and the rest of the firmware of nuvi 13xx v hwid 972 version 6.20
before i create my backup with the command "rrgn,41,1:/41-backup.bin" in the updater
I'll came to try