Hitachi HTS542525K9SA00 Specifications page 228

The user can detect if the attempt to unlock the device has failed due to a mismatched password since this is the
only reason that an abort error will be returned by the drive AFTER the password information has been sent to the
device. An abort error returned by the device BEFORE the password data has been sent to the drive indicates that
another problem exists.
Deskstar 7K160 Hard Disk Drive Specification
214