I have downloaded the Garmin Express program to my computer, but when it is looking for the Garmin device, it is telling me that it does not recognize the device I am trying to get the map downloads too.
Also I have a Garmin Nuvi 2455 LMT , and it was working fine , and then all of a sudden would not work. It's locked up to a black screen and in big letters across the screen it says Garmin. On the top of this screen it also says in white letters " system software missing".
Could you please tell me what went on for this to to what it is doing?