wasup wrote
My guess is that the pin with 3.3v on it is possibly used to sense when the av cable is plugged in. Theres probably a resistor inside the connector on the av cable that pulls that pin to ground.. or something along those lines. It would make sense to disable video hardware when its not needed.. being a battery powered device.
Try using a 4.7k resistor to short it to ground and see if it starts outputting
Unfortunately no good results... tested with 4.7k, 3k and 1k resistors; with 1k music goes off from both external (speaker) and internal audio out (this seems not to be a good thing) but with all resistor values no video out. I will try to buy an original cable.