I've found the old CD I had which I've used to rescue a few error 16 Xbox consoles.
Password: http://www.epforums.org/Code:http://www78.zippyshare.com/v/QFktHeVR/file.html
Had a quick google for a guide since it has been that long since I used this, this might help.
http://forums.xbox-scene.com/index.p...rough-xboxhdm/
http://forums.xbox-scene.com/index.p...f-hotswapping/