Table 5-4 WLAN module descriptions and part numbers
Description Spare part number
Intel Wireless Wi-Fi6e AX 211 Wi-Fi + Bluetooth® 5, M.2 2230 (non-vPro) M53366-005
Mediatek Tequila MT7921 Wi-Fi 6 + Bluetooth 5.2 M.2 2230 PCI-e + USB with WLAN M53366-005
Transparent WLAN shield N10779-001
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 (see Preparation for disassembly on page 33).
2. Remove the bottom cover (see Bottom cover on page 33).
3. Remove the battery (see Battery on page 34).
Remove the WLAN module:
1. Remove the WLAN module shield (1).
The WLAN module shield is available using spare part number N10779-001.
2. Carefully disconnect the two antenna cables from the module (2).
3. Remove the Phillips M2.0 × 2.5 screw (3) that secures the WLAN module to the system board.
4. Remove the WLAN module (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.
38 Chapter 5Removal and replacement procedures for authorized service provider parts
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