I like to replace the original internal map of my Zumo 210.
When I look at the files and folders inside, I see that the total memory is 4GB.
2GB is used by the map, and the rest is free.
The visible files on the Zumo only take a few hundred MB. So the map is not visible.
Somehow Garmin made it invisible.
Making all files visible in Windows mapoptions does not help.
With the ...