Quote Originally Posted by Sandro57 View Post
........
- internal memory is empty .
- i use a 4gb micro SD card with map western europe NT 2012.40 unlocked .....
Do you mean by 'internal memory is empty' that you have no maps on the unit? If so, try this:
Remove sd
Hard reset nuvi
Put any small routable detail map in unit with the basemap
Power down nuvi
Replace sd
Power up nuvi.