|After you lock it (I used lockhd in the xboxhdm) don't use unlockx to check if it locked properly. It will just say Not Lockable. Use ATAPWD to check. When checking using ATAPWD, reboot your PC and then check. SELFXV will show as +++--m (then you're good) after you reboot. If you just check right after you lock it, SELFXV will show as ++---m, which looks like you failed.