HP Pavilion dv4 Maintenance And Service Manual page 56

3. Remove the WWAN module by pulling the module away from the slot at an angle (3).
NOTE: If the WWAN antennas are not connected to the terminals on the WWAN module, the
protective sleeves must be installed on the antenna connectors, as shown in the following illustration.
Reverse this procedure to install the WLAN module.
48 Chapter 4 Removal and replacement procedures