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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 47).
Remove the WLAN module:
NOTE: 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. Loosen the Phillips PM2.5×6.0 captive screw (1) that secures the wireless module compartment
cover to the computer.
2. Lift the left side (2) of the cover, swing it up and to the right, and remove the cover (3). The wireless
module compartment cover is included in the Plastics Kit, spare part number 531859-001.
3. Disconnect the 2 WLAN antenna cables from the WLAN module.
NOTE: The black WLAN antenna cable (1) is connected to the WLAN module “Main” terminal.
The white WLAN antenna cable (2) is connected to the WLAN module “Aux” terminal.
4. Remove the Phillips PM2.0×3.0 screw (3) that secures the WLAN module to the computer. (The
edge of the module opposite the slot rises away from the computer.)
Component replacement procedures 51