hello there,
I have downloaded about 5 different maps for Garmin and when I get the img file I unlock it with (Fast IMG Unlocker v1.6) then transfer the file through USB into the garmin dir where the other IMG files are located.. from GPS maps I enable the Colombian map and disable the USA map.. when I try to give an address I get "no map data available" I am able to see the map and cities and streets and such but is it possible to have my GPS nuvi 880 guide me turn by turn like the USA map?