Quote Originally Posted by karolex5 View Post
i just put all of this files in gimgunlock.exe, and after that copied into sd card.
What is the name of the folder you put the map files in? Did you try to change the name as suggested in post #4?
Also bear in mind that not all Garmin units are capable of recognising map files over 2GB in size (another point I am not sure about concerning the Astro 320).

What unit did or does your friend use the files in?