Maintenance and Service Guide

WLAN module
Table 6-7 Spare part description and number
Description Spare part number
Realtek RTL8822BE 802.11ac 2 × 2 WiFi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) 924813-855
Realtek RTL8821CE 802.11ac 1 × 1 WiFi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) L17365-005
Before removing the WLAN module, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 28).
2. Remove the optical drive (see Optical drive on page 29).
3. Remove the bottom cover (see Bottom cover on page 32).
4. Remove the battery (see Battery on page 34).
Remove the WLAN module:
1. Disconnect the two antenna cables from the module (1).
2. Remove the Phillips M2.0 × 3.0 screw (2), and then pull the module out of the socket (3).
Reverse this procedure to install the WLAN module.
Component replacement procedures 43