its a 2.6 version 1.4 or 1.5, with a new western digital 160 gig. i modded it and gave it to a friend. after 2 weeks i get error 5, hd unlocked. so i try putting a locked hd in, the stock one, and i get error 6, hd locked. i then took the 2.6 (working) out of my xbox and put it in his, only to get the same result. is it possible that the xbox is no longer able to lock or unlock the hard drive? could the bios be doing this somehow? ive checked the solder points, the ide cable, im frickin stumped. if any has any insight on this it would be appreciated.