HP Compaq Presario,Presario B1201 Maintenance And Service Manual page 55

Lift the right side of the cover (2), swing it up and to the left, and remove the cover.
3.
Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
4.
NOTE: The black WLAN antenna cable is connected to the WLAN module "Main" terminal. The
white WLAN antenna cable is connected to the WLAN module "Aux" terminal.
Remove the two Phillips PM2.5×4.0 screws (2) that secure the WLAN module to the computer. (The
5.
edge of the module opposite the slot rises away from the computer.)
Remove the WLAN module (3) by pulling the module away from the slot at an angle.
6.
NOTE: WLAN modules are designed with a notch (4) to prevent incorrect installation.
Reverse this procedure to install the WLAN module.
Component replacement procedures 47