My Xbox 360 premium has developed an HDMI problem (NO audio or video).
I have tried the steps to downgrade the resolution without success.
But, I have noticed something strange.
If I am watching cable TV through HDMI 1, then connect my 360 (WITHOUT power) to HDMI 2, the HDMI 1 connection (Cable TV) goes blank.
I am thinking this is a hardware issue with the HDMI port, even with NO power, just plugging in the HDMI lead into HDMI 2 causes HDMI 1 to go blank.
Anyone ever come across this before?
Other than send it to Microsoft, I am willing to have a go myself, anyone got any ideas or suggestions please?