[Quall999]

Slayers auto installer is an xbox application. It is pretty hard to find it on a website due to legal issues. You can try torrents or xbins (google em). The hash utility is used to determine whether or not the copy of Slayers, which you downloaded from wherever, is an actual copy and not a "fake". Other than checking for a correct signature, it won't help you.

Evolution X (slayers is evoX with additional utilities) has the ability to unlock your drive. You would need to unlock it WHILE the HDD was connected to the its original xbox. If the drive doesn't boot in your xbox, then it is probably destroyed. Once you get a chip you can try to unlock it so you can reinstall everything, but no guarantees that the thing will ever work again.

Not to be mean, but the locked hard-drive is not exactly something that isn't well known. Your friend shouldn't have even touched your console if he didn't even know about the locked mobo connection. Was your xbox actually a test-box for him?