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4.
Remove the battery from the computer (4).
To install the battery, reverse the removal procedures.
WLAN module
To remove the WLAN module, use this procedure and illustration.
Table 5-3
WLAN module descriptions and part numbers
Description
MediaTek MT7921 Wi-Fi 6 Bluetooth 5.3 WLAN
MediaTek RZ616 Wi-Fi 6E Bluetooth 5.3 AIM-T WLAN
IMPORTANT:
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
2.
Remove the bottom cover (see
3.
Disconnect the battery cable from the system board (see
Remove the WLAN module:
1.
Lift the large piece of black Mylar that covers the WLAN module.
2.
Remove the plastic antenna protector from the module (1).
3.
Carefully disconnect the antenna cables from the module (2).
32
Chapter 5 Removal and replacement procedures for authorized service provider parts
To prevent an unresponsive system, replace the wireless module only with a wireless
Bottom cover on page
Preparation for disassembly on page
29).
Battery on page
Spare part number
M74879-005
N22541-005
29).
30).
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