Base Cover Assembly (T15 Gen 1 And P15S Gen 1) - Lenovo ThinkPad P14s Gen 1 Manual

8. Tighten the screws to secure the base cover assembly.
9. Turn over the computer and reinstall the nano-SIM-card tray.
10. Connect the ac power adapter and all disconnected cables to the computer.
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.

Base cover assembly (T15 Gen 1 and P15s Gen 1)

Prerequisite
Before you start, read Appendix A "Important safety information" on page 87 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.
Replacement procedure
1. Disable the built-in battery. See "Disable Fast Startup and the built-in battery" on page 55.
2. Turn off the computer and disconnect the computer from ac power and all connected cables. Then,
close the computer display.
3. Remove the nano-SIM-card tray if your computer comes with one. See "Connect to a cellular network
(for selected models)" on page 17.
4. Turn over the computer.
58
T14 Gen 1, T15 Gen 1, P14s Gen 1, and P15s Gen 1 User Guide