WLAN/Bluetooth combo card
The computer uses a card that provides both WLAN and Bluetooth functionality.
Table 5-3 WLAN module descriptions and part numbers
Description Spare part number
Realtek RTL8821CE 802.11ac 1 × 1 Wi-Fi + Bluetooth 4.2 combination adapter 915621-001
Realtek RTL8822BE 802.11ac 2 × 2 Wi-Fi + Bluetooth 4.2 combination adapter 915623-001
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 (Preparation for disassembly on page 31).
2. Place the computer in Battery Safe mode (Battery Safe mode on page 31).
3. Remove the bottom cover (Bottom cover on page 32).
4. Remove the battery (Battery on page 40).
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal labeled “1”.
The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal labeled “2”. If the
computer is equipped with an 802.11a/b/g/n WLAN module, the yellow WLAN antenna cable connects to
the middle terminal on the WLAN module.
2. Remove the Phillips M2.0 × 2.5 screw (2) that secures the WLAN module to the computer. (The edge of
the module opposite the slot rises away from the computer.)
34 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
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