I can't get my 750 to boot up I've tried the soft reset and it makes no difference I've tried charging with the USB and the car charger and the battery was at full charge when the problem started. When I try to to turn on the Garmin logo comes up and then it starts flashing and that's all it will do.
I was trying to update the SD card via the USB on my PC and erased everything on the SD card then unplugged the USB and took out the SD card. When I plugged the USB back in to the nuvi it froze on the USB connecting screen so I manually shut it down. Now when I try to boot I simply get the flashing Garmin logo. Also if I put the SD card in now it gets extremely hot fairly quickly so I guessing this is all somehow related. Any advice appreciated.