Lenovo ThinkPad X13 Yoga Gen 2, Руководство по техническому обслуживанию аппаратной части, Страница: 40 / 105

How to remove the system management password
To remove a system management password, do the following:
If no supervisor password has been set, do the following to remove the system management password:
1. Turn off the computer and disconnect ac power.
2. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 64.
3. Remove the base cover assembly. See “1030 Base cover assembly” on page 65.
4. Remove the built-in battery. See “1040 Built-in battery” on page 67.
5. Remove the coin-cell battery. See “1080 Coin-cell battery” on page 70. Wait for a few seconds.
6. Reinstall the coin-cell battery.
7. Reinstall the built-in battery.
8. Reinstall the base cover assembly.
9. Reconnect ac power.
10. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does
not appear. The system management password has been removed.
If a supervisor password has been set and is known to the service technician, do the following to remove the
system management password:
1. Turn on the computer.
2. When the ThinkPad logo is displayed, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select Security .
5. Select Password .
6. Select System Management 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. The system management password
has been removed.
Power management
Sleep mode
When the computer enters sleep mode, the screen goes blank and all internal devices are still powered on
with lower power consumption.
To enter sleep mode, press Fn+4 or open the Start menu and click Power , and then click Sleep .
In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
To resume the computer from sleep mode, press the power button.
Also, in either of the following events, the computer automatically returns from sleep mode and resumes
operation:
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X13 Yoga Gen 2 Hardware Maintenance Manual