I have the same problem and tried all the steps suggested here, although I'm not sure I have the right test mode files, not sure if the test mode directory should be in the SD Card root or the contents of the test mode directory should be in the SD root, what other files if any I need.... Bit lost
I have a reversing camera fitted and AV out goes to screen in back of car. If I go in to reverse just as the splash screen comes up, I get a few seconds of
reversing camera view before it goes to black screen. After going to black screen, video plays in the back but without sound and the unit refuses to respond to
Seriously doing my nut over this... Any help for me an original poster would be appreciated..