Follow the instructions to replace the Wireless WAN module.
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.
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.
Before you start, read Generic Safety and Compliance Notices.
Disable the built-in battery. See Disable 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.
Remove the base cover assembly. See Base cover assembly.
The blue cable is connected to the connector labeled Blue on the module.
The black and grey cable is connected to the connector labeled Black Grey on the module.
The white and grey cable is connected to the connector labeled White Grey on the module.
The orange cable is connected to the connector labeled Orange on the module.