2. Remove the bottom cover (see Bottom cover on page 41).
3. Disconnect the battery cable from the system board (see Battery on page 43).
Remove the WLAN module:
1. Remove the plastic that covers the antennas (1).
2. Carefully disconnect the two antenna cables from the module (2).
3. Remove the Phillips M2.0 × 2.5 screw (3), and then pull the WLAN module out of the
socket (4).
NOTE: When installing a WLAN module, be sure to match the number on the
antenna cable with the number next to the connector on the module.
WLAN module 51