Replace A Cru; Keyboard - Lenovo ThinkPad L15 Gen 4 IGEL User Manual

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.

Keyboard

Prerequisite
Before you start, read Generic Safety and Compliance Notices
For access, do the following:
1. Disable the built-in battery. See "Disable the built-in battery" on page 29.
2. Turn off the computer and disconnect the computer from ac power and all connected cables.
Removal procedure
Note: You might be instructed to slide the keyboard frame forward or backward in some of the following
steps. In this case, ensure that you do not press or hold the keys while sliding the keyboard frame.
Otherwise, the keyboard frame cannot be moved.
1. Loosen the screws that secure the keyboard.
For L14 Gen 4
30
ThinkPad L14 Gen 4 and L15 Gen 4 IGELUser Guide
and print the following instructions.