HP Pavilion dv3-4100 - Entertainment Notebook PC Maintenance And Service Manual page 54

2. Remove the two Phillips PM2.0×4.0 screws that secure the WLAN module to the system board.
(The WLAN module tilts up.)
3. Remove the WLAN module by pulling the module away from the slot at an angle.
NOTE:
WLAN module into the WLAN module slot.
NOTE: If the WLAN antennas are not connected to the terminals on the WLAN 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.
44 Chapter 4 Removal and replacement procedures
WLAN modules are designed with a notch (4) to prevent incorrect insertion of the