JTAG UPDATE.

Hello. My Xbox 360 is on 16537 and i wanna update it to 17150 to use XblStealth and to get online.I know to Update and even if i get a problem i will see video.but the problem is i could play my disk burned game i buy it for 1$ and can you people confirmed me that will i be able to Still play my Games after Update.Thanks
EDIT:Sorry for my Bad English I am from Pakistan