I had this XBOX of Fleabay for £10 and curred 3rod..I then jtagged it and that was working fine for about 6months..it has now got 3rod again but error code is now 0021..tried tx rrod ii kit and even tried heatgun...I've checked all capacitors to see if any dried joints and nothing..I've read somewhere its to do with southbridge...also when I power on its saying no video source available and cannot sync a keypad..I've spoke to RROD and he said Martin C could sort it.....Hope to hear from you soon......