Thread: garmin 720s and the map

I mean with " the device arrive to see the map but do not show it in the screen , that the device information show that there is 2 maps 1 world map and the 2end is the red sea map but only the world map is working with GPS ,
the red Map it is Garmin folder in sd named Garmin with 3 fils
1- named gmapsup its img format
2- gmapsupp its UNL file
3garminDivice its XML format
if you can help it will be greet
thank you