Lenovo ThinkPad E14 Gen 6 User Manual page 52

For access, do the following:
1. Disable the built-in battery. See "Before you replace any CRU" 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 42.
Step 1. Remove the speaker assembly as shown below.
Step 2. Install the assembly in reverse order.
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ThinkPad E14 Gen 6 and ThinkPad E16 Gen 2 User Guide