Installation procedure
Note: When you install the wireless WAN card, ensure that you connect the orange cable to the main
connector on the card, and the blue cable to the auxiliary connector on the card.
Speaker assembly
Prerequisite
Before you start, read
Generic Safety and Compliance Notices
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 the computer over.
4. Remove the base cover assembly. See "Base cover assembly" on page 46.
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ThinkPad L14 Gen 4 and L15 Gen 4 User Guide
and print the following instructions.