Hello...
I just found this Nuvi 255W at a thrift store for $10. It turns on, works, but for some reason, it won't go into USB storage mode. I can't get my computer to see it so I can update it. I have windows 7 Home Premium 64-bit.
Any suggestions?
When I plug it into the computer, it shows the connected symbol and starts a loading bar. When the loading bar finishes it vanishes, but after a moment the Nuvi starts the boot cycle and then runs as if not plugged in, telling me not to operate the Nuvi while driving and so on.