Samsung!!
برای کسانی که Samsung دارن سر بازی gears of war بعد از اینکه گفت update کنید به error e66 بر میخورین:
HOW TO AVOID PROBLEMS:
The problem seems to be completely random, and avoiding it seems to be a matter of luck more than anything. However, the best precautions would be:
Make sure your drive is flashed to Xtreme 4.1/4.2
Manually hex-edit your key into the firmware. Try to avoid using auto-flashers, etc.
Completely disconnect your DVD-ROM from your 360 before booting up and updating (This includes the power cable, simply unplugging the SATA cable will cause your 360 to refuse to boot.)
IF YOU HAVE RUN INTO E66:
Option 1 - Flash back to original firmware, this works every time.
Option 2 - Manually hex-edit your drive key into your modified firmware and flash that firmware. This seems to have a pretty good success rate.
Option 3 - If you have an MS25 drive, try flashing to Xtreme 3.2-3.3. If you have an MS28 drive try 4.0-4.2. You can also simply try manually hexediting your drive key into 4.1/4.2, and then flashing your MS25. This is sometimes effective.
Taken from xbox-scene.com
http://forums.xbox-scene.com/index.php?showtopic=559081
دقیق بخونید !!! LG هم مشکلی نداره
اگر NFS CARBON رو بازی کردید و update که تو carbon بوده رو اجرا کردین احتمالا دیگه update نمیکنه و gears of war هم اجرا میشه ولی اگه نشد اونایی که samsung دارن firmware رو عوض کنن درست میشه. LG هم مشکلی نداره ! :d