user manual

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 48).
5. Remove the hard drive (see
Hard drive on page 57).
Remove the WLAN module:
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 Phillips PM2.0×3.0 screw (2) that secures the WLAN module to 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.
62 Chapter 4 Removal and replacement procedures