My 360 has just RRODed on me.
but its done 2 RROD codes.
The normal lower 2 and top left lights but also done the top 2 and lower left.
I also found a site that listed pressing both the sync and eject button at the same time then pressing the eject button 3 times will give different right light flashes to see that the error is.
mine flashes
All 4 when you 1st press the buttons then
top left
all 4
top left and right
but its done 2 RROD codes.
The normal lower 2 and top left lights but also done the top 2 and lower left.
I also found a site that listed pressing both the sync and eject button at the same time then pressing the eject button 3 times will give different right light flashes to see that the error is.
mine flashes
All 4 when you 1st press the buttons then
top left
all 4
top left and right

and more people should do the same imo as they tend to get away with it far too often. It's very doubtful it would ever get to the courts anyway as most companies would give up just by the threat.