Figure 12 Usual Operation; User Password Lost - Hitachi HTS541616J9SA00 Specifications

(*1) refer to Figure 14 Command table for device lock operation on page 5 and Figure 15 Command table for
device lock operation - continued on page 5.

Figure 12 Usual Operation

12.9.1.3 User Password Lost

If the User Password is forgotten and High level security is set, the system user can't access any
data. However the device can be unlocked using the Master Password.
If a system user forgets the User Password and Maximum security level is set, data access is
impossible. However the device can be unlocked using the Security Erase Unit command to unlock
the device and erase all user data with the Master Password.
Travelstar 5K160 (SATA) Hard Disk Drive Specification
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