Thread: City Navigator North America NT 2012.10

The GMA authentication tripped me up because I downloaded my map update from Garmin for my 1300LM. Running Map Reverse Converter and Garmin Unlocker didn't strip the authentication. I had to use Fast IMG Unlocker after the maps had been transferred.

It all works. I'm in the process of writing the tutorial, to add to the GMA authentication thread.

EDIT: I neglected to mention that this thread is still useful to me, because my download from Garmin doesn't include the JCV file. I already thanked the OP, so I don't need to do it again.