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.
Wireless WAN card and Wireless WAN card bracket (for selected
models)
Follow the instructions to replace the Wireless WAN card and Wireless WAN card bracket.
The following information is only for the computer with user-installable modules. Ensure that you use only a
Lenovo-authorized wireless module specifically tested for this computer model. Otherwise, the computer will
generate an error-code beep sequence when you turn on the computer.
Prerequisite
Before you start, read
Generic Safety and Compliance Notices and print the following instructions.
Attention: Do not touch the contact edge of the wireless WAN card. Otherwise, the wireless WAN card
might get damaged.
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.
3. Close the computer display and turn over the computer.
4. Remove the base cover assembly. See “Base cover assembly” on page 30.
Type 1
Note: A Mylar film might cover the wireless WAN card. To access the wireless WAN card, peel off the film
first.
Step 1. Remove the wireless WAN card and wireless WAN card bracket as shown below.
32
ThinkPad X13 Gen 5 and ThinkPad X13 2-in-1 Gen 5 User Guide