HP ZHAN A 14 Maintenance and Service Guide - Page 38

WLAN module, Disconnect the battery cable from the system board see

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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 Spare part number M74879-005 N22541-005 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 (see Preparation for disassembly on page 29). 2. Remove the bottom cover (see Bottom cover on page 29). 3. Disconnect the battery cable from the system board (see Battery on page 30). 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

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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
Spare part number
MediaTek MT7921 Wi-Fi 6 Bluetooth 5.3 WLAN
M74879-005
MediaTek RZ616 Wi-Fi 6E Bluetooth 5.3 AIM-T WLAN
N22541-005
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 (see
Preparation for disassembly
on page
29
).
2.
Remove the bottom cover (see
Bottom cover
on page
29
).
3.
Disconnect the battery cable from the system board (see
Battery
on page
30
).
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