Lenovo ThinkPad T431s Hardware Maintenance Manual - Page 38

Supervisor password, How to remove the power-on password, How to remove the hard disk password

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Supervisor password A supervisor password protects the system information stored in the ThinkPad Setup. The user must enter the supervisor password in order to get access to the ThinkPad Setup and change the system configuration. Attention: If the supervisor password has been forgotten and cannot be made available to the service technician, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee. How to remove the power-on password To remove a power-on password, do the following: If no supervisor password has been set, do the following to remove the power-on password: 1. Turn off the computer. 2. Remove the battery pack. For instructions on how to remove the battery pack, see "1070 Battery pack" on page 63. 3. Remove the backup battery. For instructions on how to remove the backup battery, see "1060 Backup battery" on page 62. Wait for a few seconds. 4. Reinstall the backup battery. For instructions on how to install the backup battery, see "1060 Backup battery" on page 62. 5. Reinstall the battery pack. For instructions on how to install the battery pack, see "1070 Battery pack" on page 63. 6. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The power-on password has been removed. If a supervisor password has been set and is known to the service technician, do the following to remove the power-on password: 1. Turn on the computer. 2. When the ThinkPad logo comes up, immediately press F1. 3. Type the supervisor password to enter the ThinkPad Setup program. 4. Select Security. 5. Select Password. 6. Select Power-On Password. 7. Type the current supervisor password in the Enter Current Password field. then leave the Enter New Password field blank, and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. Press F10 to save changes and exit the ThinkPad Setup program. How to remove the hard disk password Attention: If User only mode is selected and the user hard disk password has been forgotten and cannot be made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide any services to reset the user hard disk passwords or to recover data from the hard disk drive. To put the system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee. To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following: 1. Turn on the computer. 2. When the ThinkPad logo comes up, immediately press F1 to enter the ThinkPad Setup program. 3. Select Security. 32 Hardware Maintenance Manual

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Supervisor password
A supervisor password protects the system information stored in the ThinkPad Setup. The user must enter
the supervisor password in order to get access to the ThinkPad Setup and change the system configuration.
Attention:
If the supervisor password has been forgotten and cannot be made available to the service
technician, there is no service procedure to reset the password. The system board must be replaced for
a scheduled fee.
How to remove the power-on password
To remove a power-on password, do the following:
If no supervisor password has been set, do the following to remove the power-on password:
1. Turn off the computer.
2. Remove the battery pack. For instructions on how to remove the battery pack, see “1070 Battery
pack” on page 63.
3. Remove the backup battery. For instructions on how to remove the backup battery, see “1060 Backup
battery” on page 62. Wait for a few seconds.
4. Reinstall the backup battery. For instructions on how to install the backup battery, see “1060 Backup
battery” on page 62.
5. Reinstall the battery pack. For instructions on how to install the battery pack, see “1070 Battery pack”
on page 63.
6. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does
not appear. The power-on password has been removed.
If a supervisor password has been set and is known to the service technician, do the following to remove
the power-on password:
1. Turn on the computer.
2. When the ThinkPad logo comes up, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select
Security
.
5. Select
Password
.
6. Select
Power-On Password
.
7. Type the current supervisor password in the
Enter Current Password
field. then leave the
Enter
New Password
field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10 to save changes and exit the ThinkPad Setup program.
How to remove the hard disk password
Attention:
If
User only
mode is selected and the user hard disk password has been forgotten and cannot be
made available to the service technician, neither Lenovo nor Lenovo authorized service technicians provide
any services to reset the user hard disk passwords or to recover data from the hard disk drive. To put the
system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to
replace the hard disk drive or solid-state drive with a scheduled fee.
To remove a user hard disk password that has been forgotten, when the supervisor password and master
hard disk password are known, do the following:
1. Turn on the computer.
2. When the ThinkPad logo comes up, immediately press F1 to enter the ThinkPad Setup program.
3. Select
Security
.
32
Hardware Maintenance Manual