I have had Nuvi 3597 for a while and it worked great. A couple of days ago I tried to update maps using GarminExpress as I did on the past. Update started OK, then the Nuvi got disconnected from the PC. I accidently pulled out USB cable. I did not think much about it. Plugged the cable back and restarted Garmin Express. Nuvi connected to the PC, and I started the map update process again. Unfortunately it got stuck at at Preparing device for map update. Cannot get pass this screen.
I changed as per previous post to mass storage. No changes.
Any help could be appreciated as I am going to Europe in 2 weeks time and just purchased Europe maps latest version on a memory card.