Figure 82. Password Lost; User Password Lost - Hitachi ic35l060avv207-0 - Deskstar 60 GB Hard Drive Specifications

3.5 inch ultra ata/100 hard disk drive
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9.7.4.4 User Password Lost

If the User Password is forgotten and High level security is set, the system user cannot 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.
User Password Lost
Erase Prepare Command
Erase Unit Command
with Master
Password
Normal operation but data lost

Figure 82. Password Lost

9.7.4.5 Attempt limit for SECURITY UNLOCK command
The SECURITY UNLOCK command has an attempt limit. The purpose of this attempt limit is to prevent
someone from attempting to unlock the drive by using various passwords multiple times.
The device counts the password mismatch. If the password does not match, the device counts it without
distinguishing the Master password and the User password. If the count reaches 5, EXPIRE bit (bit 4) of
Word 128 in Identify Device information is set and the SECURITY ERASE UNIT command and the
SECURITY UNLOCK command are then aborted until a hard reset or a power off. The count and
EXPIRE bit are cleared after a power-on reset or a hard reset.
LEVEL ?
High
Maximum
Deskstar 180GXP hard disk drive specifications
Unlock CMD with Master Password
Normal operation
83

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