I fixed my brother's 360 after it red ringed for the second time, and now a friend's has stopped working with an E74 error. From what I've read, the problem may be the same therefore the fix may also work. Microsoft only identifies E74 as a 'general hardware failure', yet they also state that it's related to the three red rings. The difference, however, is that this unit only has a single red light. I am wary to recommend he send it so I can attempt the repair because I would hate for him to waste money on shipping if there is zero chance of it working. He may as well pay the $100 for Microsoft's repair service at that point. Has anybody attempted the RRoD fix on an E74 malfunctioning unit and can testify whether it succeeded?