HP ProBook 4410s Maintenance And Service Manual page 86

3. Remove the two Phillips PM2.5×3.0 screws (2) that secure the WLAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
4. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE:
Reverse this procedure to install the WLAN module.
76 Chapter 4 Removal and replacement procedures
WLAN modules are designed with a notch (4) to prevent incorrect insertion.