Thread: Garmin City Navigator Europe NTU 2015.20

ciao catymag
i actually do not get error messages
i did not mess with the built-in central europe map
i installed the full europe map image on SD Card
in the zumo map selection menu i can see both maps and can select them if i wish
i deselected the built-in central europe map and selected the full europe (SD based) map
still no error message
if i then switch to the zumo screen view i only see the basemap
and if i switch to the routing screen and try to enter an address i get the message 'no map data found'
i believe it must be possible to work with SD based maps in the zumo as well, because Garmin offers to buy additional maps and feed them into the zumo through SD
what is basically wrong here ? do i do something wrongly (not sure, since the SD based IMG works fine on other Garmin devices) or is this mission impossible (due to Garmin new protection stuff) ?
if i delete my built-in map and replace it with the full europe map, where do i get the files you mentioned above ?
mille grazie

Originally Posted by catymag

Protected firmware devices give "cannot authenticate map" error when you load a map without its .gma and .unl
Do you get this error?
I think there is another reason.
If you have old CNE map in zumo, backup it along .gma and .unl and try to remove it.

Originally Posted by guyinnrw

i did not mess with the built-in central europe map

What kind of map is this? What is its FID?