Hi!

I have unusual problem with my Garmin GPS.

I have got a Nuvi 1390 which won't connect to computer. I have seen a screen which show a progress bar and after that shows computer. Picture with computer without progress bar has seen a screen about 10-15 seconds. During that period computer don’t detect nuvi like drive.

After that, nuvi reboots itself and nuvi works normally, like on car charger. When I disconnect nuvi from my computer I have seen massage: “External power has been lost. Turning off in 30, 29,28…”

Of course, I have changed USB port, computer, cable…

Can I do software update, maps update, POI….?

Help, please.