hello guys i have Xbox 360 of 2010 Hitachi drive PAL machine modded chip i bought it in 2012 august can run all older games like gears of war 2, call of duty 4 and modern warfare 2 , saint rows 2 ,call of duty black oops but unfortunately cannot run battle field 3 and mw3 and Assassion creed 3 and saints row third , but for the newer games its appear i have to update the system :/ and am afraid to update, if i update it ? i will loose to run copy cd ? right ? so any solution ? help ? thanks in advance <3 sorry for my weak English some of guys say i have to update the drive firmware ? how to update ? any good tutorials link am kinda nooby thnxxx in advance.