My son loaned me his GPS several months ago. This week it quit working. When I turn on the switch I get 5 to seconds of startup screen and then it goes blank. Today I brought it in the house and plugged it into the USB port on the computer. After an hour it does the same thing. It had been losing power, maybe because the bouncing in the truck? The way I had been using it, the power cord was kind of pinched between the unit and the dash. Maybe the connection in the unit, or the plug broke a wire? I was wondering if the battery went bad in it? I was going to take the back off to see if I could replace the battery. I went to 3 stores including Fastenal looking for a torx screwdriver small enough. Menards had a T6 but it was too big. Any suggestions? My sons bought me a cheaper no name GPS for Christmas, but it is not nearly as good as Garmin, But it is getting me through for now. I downloaded the manual from Garmin, but it does not cover this issue. I think I will try to find a number to call. Thanks, Roy