My 910 wouldn't boot up today. I bought it used with no mods I was ever aware of. When I turn on the unit the MAP, MENU and Eject buttons all light up for about 10 seconds but nothing starts up on the screen. The Eject doesn't work either. I hear the fan going in the background. When I reset the unit I hear it reset but same issue. Startup never starts. Anyone encountered this before and found a solution?