1. Prepare the computer for disassembly (see Preparation for disassembly on page 30).
2. Remove the bottom cover (see Bottom cover on page 30).
3. Remove the battery (see Battery on page 31).
4. Remove the left solid-state drive (see Solid-state drive on page 33).
5. Remove the heat sink (see Heat sink on page 38).
Remove the WLAN module:
1. Remove the plastic antenna protector from the module (1).
2. Carefully disconnect the antenna cables from the module (2).
3. Remove the Phillips M2.0 × 2.5 screw (3), and then remove the WLAN module from the computer (4).
NOTE: Models have either one or two WLAN antennas. On models with two antennas, the #1 white
WLAN antenna cable connects to the WLAN module #1 Main terminal. The #2 black WLAN antenna cable
connects to the WLAN module #1 Aux terminal.
42 Chapter 5 Removal and replacement procedures for authorized service provider parts