Hi , there may be a solution that does the above and allows you to short the points
Unlock ATA password Hitachi Hard Drive
Now I know if hitachi hard drives can be unlocked via a 9000.00 piece of equipment called PC-3000 we also can do it with something readily available to the general public.
It appears that they use a "Probe" which may just be some hardware hack or jumper to cause password flag to be erased when certain code is sent to the drive the force the execution of this code by either applying power or resistance or simply jumping these two pads.
How I think it works:
The probe causes a write flag to be set and allows the password to get over written with a new one or maybe the write head is forced to confirm password from a different location on the hard drive when this jumper is enabled a writeable area thus when request to unlock is preformed the fake location is read password is correct and lock flag gets removed.
Tools needed for testing:
P4 PC with ide drive.
Ultimate boot disk
2.5 to 3.5 ide adapter.
Hook up toggle switch to 5v power so you can power off and on your hard drive manually.
Hook up drive to PC as the only hard drive on primary and a cd/dvd/bd rom drive on secondary ata.
Set bios to boot from CD first.
Insert ultimate boot cd and load ata password utility on there.
Now we can send info and power down set jumper and power up. If done right we may be able to overwrite the password.
Use this as a guideline for unlocking! http://www.youtube.com/watch?v=X5UczkKoi20
Download this video entering in the above address at www.keepvid.com
Any hardware gurus out there with locked hdd's?