hi
i found this in tomtom website.
Map Areas
If your device supports maps with 3D buildings but it does not have enough space for the full 3D buildings map, MyDrive Connect will offer to install the same map but with 3D buildings only in a limited area of your choice. Note that you can only have one map area installed at a time.
Map areas are available for the Europe map and the USA, Canada and Mexico map. You can also select to install the full Europe or USA Canada and Mexico map without 3D buildings.
When you have enough space available on your device, you can always change the map area or install the full 3D buildings map. If your device has a memory card slot, you can insert a memory card so there is enough space to install the full 3D buildings map
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