I've only had my avic F900 headunit for a couple months and its worked slow but flawlessly until yesterday. The loading screen will come up when I crank the car but then it will go to a black screen after its done loading instead of the menu screen. When I press any of the menu/map or knob buttons it doesn't make any beeping sounds.

 

HELP!!!! has this happened to anybody? I really don't want to take it out to send it back to avic.