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 (for selected models)
Follow the instructions to replace the Wireless WAN card.
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.
Before you start, read
Generic Safety and Compliance Notices
Notes:
• Wireless WAN ready model identifies that product has preinstalled wireless WAN antennas and allows a
user-installable wireless WAN module.
• Only wireless WAN model or wireless WAN ready model is allowed to install the optional Lenovo wireless
WAN module.
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 46.
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 46.
Step 1.
Remove the Wireless WAN card as shown below.
Note: A Mylar film might cover the wireless WAN card. To access the wireless WAN card, peel off
the film first.
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ThinkPad L13 Gen 5,ThinkPad L13 2-in-1 Gen 5 and ThinkPad S2 Gen 9User Guide
and print the following instructions.