WLAN module
Table 5-7 WLAN module descriptions and part numbers
Description Spare part number
Realtek RTL8821CE 802.11ac 1 × 1 Wi-Fi + Bluetooth 4.2 L17365-005
Realtek RTL8822BE 802.11ac 2 × 2 Wi-Fi + Bluetooth 4.2 924813-855
Realtek RTL8822CE 802.11ac 2 × 2 Wi-Fi + Bluetooth 5.0 (MU-MIMO supported) L44796-005
IMPORTANT: To prevent an unresponsive system, replace the wireless module only with a wireless module
authorized for use in the computer by the governmental agency that regulates wireless devices in your
country or region. If you replace the module and then receive a warning message, remove the module to
restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 22).
2. Remove the keyboard/top cover (see Keyboard/top cover on page 22).
3. Disconnect the battery (see Battery on page 30).
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: 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.
2. Remove the Phillips M2.0 × 2.5 screw (2) that secures the WLAN module to the bottom cover. (The WLAN
module tilts up.)
Component replacement procedures 31
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