Artis

Hello guys. I'm sorry if its a wrong topic but i have a problem with my xbox 360 slim rgh. My brother moved some game files from cd to xbox that are not converted with iso2god. Then he added a game path to folder with those files. I managed to fix rrod and error E79 screen but now it doesn't turn on. It looks ok but it doesn't launch dasboard or anything. Can you help me please?