HP 14-cf0000 Maintenance and Service Guide - Page 46

WLAN module, CAUTION

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WLAN module Description Dual Antenna Intel Dual band wireless-AC 3168 802.11AC 1x1 WiFi + BT 4.2 Combo Adaptor (non-vPro) Realtek RTL8822BE 802.11 ac 2x2 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported) Single Antenna Realtek RTL8821CE 802.11 ac 1x1 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported) Realtek RTL8723DE 802.11 bgn 1x1 WiFi + BT 4.2 Combo Adapter Intel Dual Band Wireless-AC 9461 802.11 AC 1×1 WiFi + Bluetooth 5 Combo Adapter (non-vPro) (MU-MIMO supported) Spare part number 863934-855 924813-855 L17365-005 L21480-005 L25889-005 CAUTION: 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 support. Before removing the WLAN module, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the rubber feet (see Computer feet on page 31). 5. Remove the bottom cover (see Bottom cover on page 33). 6. Remove the battery (see Battery on page 35). To remove the WLAN module: 1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module. NOTE: The #1 WLAN antenna cable is connected to the WLAN module Main terminal. The #2 WLAN antenna cable is connected to the WLAN module Aux terminal. 2. Remove the Phillips PM2.0×3.0 screw (2) that secures the WLAN module to the system board. (The WLAN module tilts up.) 38 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts

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WLAN module
Description
Spare part number
Dual Antenna
Intel Dual band wireless-AC 3168 802.11AC 1x1 WiFi + BT 4.2 Combo Adaptor (non-vPro)
863934-855
Realtek RTL8822BE 802.11 ac 2x2 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported)
924813-855
Single Antenna
Realtek RTL8821CE 802.11 ac 1x1 WiFi + BT 4.2 Combo Adapter (MU-MIMO supported)
L17365-005
Realtek RTL8723DE 802.11 bgn 1x1 WiFi + BT 4.2 Combo Adapter
L21480-005
Intel Dual Band Wireless-AC 9461 802.11 AC 1×1 WiFi + Bluetooth 5 Combo Adapter (non-vPro) (MU-MIMO
supported)
L25889-005
CAUTION:
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 support.
Before removing the WLAN module, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is
off
or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by
first
unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4.
Remove the rubber feet (see
Computer feet
on page
31
).
5.
Remove the bottom cover (see
Bottom cover
on page
33
).
6.
Remove the battery (see
Battery
on page
35
).
To remove the WLAN module:
1.
Disconnect the WLAN antenna cables
(1)
from the terminals on the WLAN module.
NOTE:
The #1 WLAN antenna cable is connected to the WLAN module Main terminal. The #2 WLAN
antenna cable is connected to the WLAN module Aux terminal.
2.
Remove the Phillips PM2.0×3.0 screw
(2)
that secures the WLAN module to the system board. (The
WLAN module tilts up.)
38
Chapter 5
Removal and replacement procedures for Authorized Service Provider parts