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Before removing the WLAN module, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
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 29).
5.
Remove the following components:
a.
Keyboard (see
Keyboard on page 30)
b.
Hard drive or solid-state drive (see
Mass storage device on page 33)
c.
Top cover (see
Top cover on page 35)
d.
Audio board (see
Audio board on page 37)
e.
System board (see
System board on page 41)
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.
Turn the system board upside down, with the front toward you.
2. Remove the Torx8 T8M2.5×5.0 screw (1) that secures the WLAN module to the system board. (The
edge of the module opposite the slot rises away from the computer.)
3. Remove the WLAN module (2) by pulling the module away from the slot at an angle.
NOTE: WLAN modules are designed with a notch (3) to prevent incorrect installation.
Reverse this procedure to install the WLAN module.
46 Chapter 4 Removal and replacement procedures