Prerequisite
Before you start, read Generic Safety and Compliance Notices and print the following instructions.
Note: Do not remove
the base cover assembly when your computer is connected to ac power.
Otherwise, there might be a risk of short circuits.
For access, do the following:
Disable the built-in battery. See Disable Fast Startup and the built-in battery.
Turn off the computer and disconnect the computer from ac power and all connected cables.
Close the computer display and turn over the computer.
Removal procedure
T14 Gen 3 and P14s Gen 3
T16 Gen 1 and P16s Gen 1
Installation procedure
T14 Gen 3 and P14s Gen 3
Reinstall
the screws in alphabetic order (a to g).
T16 Gen 1 and P16s Gen 1
Reinstall the screws in alphabetic order (a to h).
Troubleshooting
If the computer does not start up after you reinstall the base cover assembly, disconnect the ac power adapter and then reconnect it to the computer.