WLAN module
Description Spare part number
Intel Dual band wireless-AC 3168 802.11AC 1x1 WiFi + Bluetooth 4.2 Combo Adapter (non-vPro) 863934-855
Realtek RTL8822BE 802.11 ac 2x2 WiFi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) 924813-855
Realtek RTL8821CE 802.11 ac 1x1 WiFi + Bluetooth 4.2 Combo Adapter (MU-MIMO supported) L17365-005
Realtek RTL8723DE 802.11 bgn 1x1 WiFi + Bluetooth 4.2 Combo Adapter L21480-005
Before removing the WLAN, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the optical drive (see Optical drive on page 33).
5. Remove the bottom cover (see Bottom cover on page 37).
6. Remove the battery (see Battery on page 40).
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.
50 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts