Yeah, so my xbox has 1 red ring of death, and it isn't in warranty. I got it about a year after it came out. Anways, got the E74 error, which if I'm correct means theres something wrong with the AV. I bought a HDMI cable in the hope that it would fix it, but it still has one red ring. Is there anything else I could do to try and fix it besides sending it to microsoft?