3 red lights, error code 0102 which is usually a good one to fix, and that error code has never changed,sometimes when you mess with them enough the error code can change cant it to totally different errors,can be funny things xboxes sometimes, ive tried normal xclamp, heat gunned it a couple of times, heat pads, the credit card thing where you put credit card strips around the cpu and gpu still no joy, at first it used to crash every so often while playing games on it, then eventually got to 3 red lights, nightmare xbox lol