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.
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. Then, close the computer display.
Remove the nano-SIM-card tray if your computer comes with one. See Connect to a cellular network (for selected models).
Remove the base cover assembly. See Base cover assembly (T14 Gen 2 and P14s Gen 2) or Base cover assembly (T15 Gen 2 and P15s Gen 2).
Removal procedure of the wireless WAN card with two antenna cables
After installation, ensure that you connect the orange cable to the connector labeled Orange on the card, and the blue cable to the connector labeled Blue.
Removal procedure of the wireless WAN card with four antenna cables (for selected Intel models)
After installation, ensure that you connect the orange cable to the connector labeled Orange on the card, the blue cable to the connector labeled Blue, the white and grey cable to the M1 connector, and the black and grey cable to the M2 connector.