Thread: Cannout Authenticate Maps

I'm trying to install Europe 2011 maps to my nuvi 3790t. I unlocked the maps with jetmouse keygen, and checked that the maps are unlocked in mapsource.

But when I transfer them to my device i get the message "Cannot Authenticate Maps"

I've read something about unpluging the gps instead of ejecting it after the transfer is completed, but it didnt work...
I can see the file (gmapsupp.imb) in my Map directory, and i dont have a .unl file, but i understood that if I unlocked the maps in mapsource there is no need to have one.

Any hint?

Thanks in advance, great site!