To share with those with Nuvi 1250, I used the type3 file. Used the keyunlocker to unlock the map, put the map in my ..system folder and the JCV file in the JCV folder. Both works beautifully. So far no problem. But I did not try the traffic feature.

If I decide to put the map in my SD card, will it work? I know the map will work. But what about the JCV?