QUOTE(Movax @ Oct 3 2007, 04:39 PM)
Slayers will still load if he didn't completely hose his softmod. (which it sounds like he didn't).
If he is getting a dashboard launch error there is no way a boot disk will load, a softmod loads with the dash and you cant run unsigned code until the exploit loads.
Go and hire splintercell, start the xbox with the game in the drive then try to load saved game from the hdd, hopefully your friend left the exploit game save on the hdd, if so you should then be able to reinstall.