It's been a long time since we have done an update. My husband got Halo 4 as a gift and we have an older xbox 360 (one of the first ones to come out) and it asked to do an update. During the update being applied, we get the on red light with an E66 error. Still won't read disk if we say no to the update. I was concerned that the disk was bad since he popped another game in there (condemed 2) and worked fine. We had this thing repaired as we suffered the red ring of death some years back. I have not seen any solutions, something tells me there is something in the update causing this since other games work fine?