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 device 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 38).

5.Remove the service cover (see Service cover on page 40).

Remove the WLAN module:

1.Disconnect the WLAN antenna cables

NOTE: The number of WLAN cables varies, depending on model. Note the labeling and position of the cables. Disconnect the antenna cables by pulling the cables off the terminals.

2.Using a small Phillips screwdriver, remove the 2 WLAN module screws. This releases the module to tilt up at a slight angle

Component replacement procedures 49