Quote Originally Posted by ddabcd277 View Post
Choose from the service menu on the speedometer Mass Storage Mode.
Tnx for the advice.. I can't find that option

Can you tell me please, more precisely how to switch to Mass Storage mode?

(When I plug the Nuvi 2455LT to the computer, on it's screen is shown only 'Garmin" logo and a picture that shows that is connected to the PC (touch screen not responding that time and I can't power on the device))