Replace A Cru; Base Cover Assembly - Lenovo ThinkPad X1 Carbon Gen 12 User Manual

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3. Click Change settings that are currently unavailable at the top.

4. If prompted by User Account Control (UAC), click Yes.

5. Clear the Turn on fast startup check box, and then click Save changes.

To disable the built-in battery:

1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS

menu.

2. Select Config ➙ Power. The Power submenu is displayed.

3. Select Disable Built-in Battery and press Enter.

4. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off

automatically. Wait three to five minutes to let the computer cool.

Replace a CRU

Follow the replacement procedure to replace a CRU.

Prerequisite

Before you start, read

Generic Safety and Compliance Notices

Notes: Do not remove the base cover assembly in the following situations. Otherwise, there might be a risk

of short circuits.

• When your computer has the removable battery installed

• When your computer is connected to ac power

For access, do the following:

1. Disable the built-in battery. See "Disable Fast Startup and the built-in battery" on page 41.

2. Turn off the computer and disconnect the computer from ac power and all connected cables.

3. Close the computer display and turn over the computer.

Removal procedure

ThinkPad X1 Carbon Gen 12 User Guide

and print the following instructions.

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