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2. When the ThinkPad logo comes up, immediately press F1 to enter BIOS Setup Utility.For models
supporting the Passphrase function, press F1 while HDP icon is appearing on the screen; then enter the
master HDP. For the other models, enter the master HDP.
Note: To check whether the ThinkPad Notebook you are servicing supports the Passphrase function,
enter the BIOS Setup Utility and go to Security ➙ Password. If Using Passphrase item is displayed
in the menu, this function is available on the ThinkPad Notebook.
3. Select Security, using the cursor directional keys to move down the menu.
4. Select Password.
5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens.
6. Select Master HDP.
7. Type the current master HDP in the Enter Current Password eld. then leave the Enter New Password
eld blank, and press Enter twice.
8. Press F10.
9. Select Yes in the Setup Conguration window. Both user HDP and master HDP will have been removed.
58 ThinkPad T410 and T410i Hardware Maintenance Manual