Part one: Error Symptom
Sometimes our drive may be protected by password. Look at the following picture; we can see the LBA number was replaced by a special character “drive is protected by password”:
In this condition, the drive could be detected in BIOS, but can’t access to the data area:
When we try to access to data area, shows all “6666″ and error status.
Part two: The Reason
This error condition usually happened on some suddenly interrupted, for example: in the process of drive format or data transmission, suddenly power off or disconnection, the drive may be protected by password.
Part three: Error Analysis
In modules list, we can see a Password module:
In fact, when the HDD power on, the main control chip will check this module, if it find the sign bit was changed, the drive would under protected status, as the following pictures.
Not be protected, #26 mod:
Be protected, #26 mod:
We can see the third and fourth bits were changed, for “0500 0000” to “050B 0001“.
Now we have found the reason of thse problem, so the solution is so easy, just need to modify the bit to original status.
Part four: The Solution
We could remove the password through HDD Doctor in a very simply way: go the “Other Operations”, click “Clean HDD Password” button:
Then power off and on, load from HDD again, we can see the password has been removed:
Now the LBA number returns to normal status and could access to data area already:
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