my xbox as been flashed before but will not play new games

my xbox as been flashed before but now i cant play new games what do i need to update it or flash it again. i think it as a liteon drive please help

 

Is it jtagged ?? Which version of LT + you on if on the older 2.0 then you need to update to 3.0 for sure for newer xgd3 games to work .

 

If it aint playing new games then you need to reflash it with the latest firmware which is LT 3.0

 

how do i update it and what do i need mate

 

there are loads of tutorials knocking about the site mate,try this one here http://www.xpgamesaves.com/topic/25423-beginners-guide-what-you-need-to-flash-a-xbox-360-and-how-to-set-it-all-up/#.UGbMi5jWJVM