Now, it comes up showing GARMIN screen and goes no further. From Garmin support Why is my nuvi 1100, 1200, 1300, or 1400 series locked up on the Garmin logo when I power on the device?Computer doesn't see it, won't get to master reset screen and basically it is just a GARMIN 5" billboard. If your device reboots, locks up, or shuts down occasionally while navigating but it allows you to go into mass storage mode when you connect it to the computer, please perform a software update using our Webupdater program to correct the issue.
The Nuvi will start with a black screen with "Garmin", a progress bar and a icon of a nuvi connected to a computer. I download the Webupdater, but it cannot connect to the Nuvi even though it recognizes it. I also have the same unit, I have no problems updating software and maps, but you do need to follow c764's advise for the system to work.It also is more accurate and I have not had to 'yell' my instructions to the 3590, as I often had to with the 3790.The ability to get real time weather data, even traffic cameras, via your Android smartphone is also a major upgrade.The device does not load to the main menu and will not go into mass storage mode when connected to a computer.The device powers on, freezes at the Garmin logo, then flashes a white screen briefly.