iand46
Registered user
Format to MS-DOS (FAT) if that doesn't fix it try a brand new card
Not heard of that method. Can't see it on my Mac.
As i said above i do not own or use a Mac, and also stated that it may be a different procedure with a Mac


First off check you have the actual map installed and selected, to do this go to tools, settings. map, map info, ensure there is a tick in both boxes, it should read something like cn europe nt 2017.10 and cn europe nt 2017.10 3d, depending on maps installed. if thats ok check software update and also check the sd card for errors.
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+1, cheek you have the maps selected in the settings area of the Zumo
Also Garmin Express works fine with a Mac, just reformat the card, insert it into the Zumo and install the map from Express. From here you might find that you don't have the mapping detail when you zoom right into a built up area, go to settings/map/installed maps and you should see a check mark in the box next to the map description, if not enter it and then recheck the zoom on a built up area again = you should see the detail.
If you want to check that the maps are on the card, connect it to your Mac, fire up base camp and you should see be able to use the Zumo as a source of the map (can't quite remember how but it's fairly self evident)
Express is fine but can you use it to transfer a map from a Mac to a nav without downloading.