Re: Xbox360 Error Code E74
well what i know about E74 is there is a 90% chance it's a scaler chip problem (the "ANA" or "HANA" chip near the AV cable connection) it can also be caused by a faulty AV cable so check that first. In rare cases it is a problem with the GPU.
Re: Xbox360 Error Code E74
phone them inform them it is not working and you have unplugged everything then try again again but if it just not work ,then they will send you a new box keep trying..
Re: Xbox360 Error Code E74
you can troubleshoot with your own but search for best man to do it dont try with ant text guide line like online guides.
Re: Xbox360 Error Code E74
THINGS TO TRY
1. Make sure that the AV cable is correctly connected to the Xbox 360 console.
2. Disconnect the AV cable from the Xbox 360 console, and then reconnect the AV cable to the Xbox 360 console.
3. If the four flashing red lights continue to flash, try wiping the metal area of the AV pack with a dry cloth. The metal area is the end that plugs into the console. Wipe the metal area thoroughly, and then try the AV Pack again.
4. If the AV cable is correctly connected but the four red lights are still flashing, substitute a different AV cable if you have one available.