Hello guys, well, I sad to be writing, but it happen to my 3790LMT, can you please please help me?

Just for reference of the forum, I just turn on the car, the GPS with it, and it lose all the configuration, even the Garmin Lock, after I entered the menu (I had to select the country, accept the agreements again) I notice I lose the Voice Commands and the bluetooth (no connection to the Eco Route HD) and yes I see in the system information 37xx instead 3790.

Sad story because I´m in Costa Rica, and I think I no longer have warranty on my GPS :S That´s why I so desperately help.