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CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If you replace the module and then receive a warning message, remove the
module to restore computer functionality, and then contact technical support through Help and Support.
1. Disconnect the WLAN antenna cables (1) from the WLAN module.
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.
2. Remove the two Phillips PM2.0×4.0 screws (2) that secure the WLAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
3. Remove the WLAN module (3) by pulling it away from the slot at an angle.
NOTE: WLAN modules are designed with a notch (4) to prevent incorrect insertion into the WLAN
module slot.
Reverse this procedure to install a WLAN module.
68 Chapter 4 Removal and replacement procedures