HP (Hewlett-Packard) HP 431 Laptop User Manual


 
WLAN module
Description Spare part number
Atheros AR9002WB-1NGB 802.11b/g/n 1×1 WiFi and Bluetooth 2.1+EDR Combo Adapter
(BT3.0+HS ready)
593127-001
Ralink 5390GN 802.11b/g/n 1×1 WiFi Adapter 630703-001
Realtek 8188BC8 802.11a/b/g/n 2×2 WiFi and Bluetooth 3.0+HS Combo Adapter 602993-001
Realtek 8188GN 802.11b/g/n 1×1 WiFi Adapter 640926-001
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 technical 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 battery (see
Battery on page 43).
5.
Remove the memory module/wireless module compartment cover (see
Optical drive
(select models only) on page 51).
Remove the WLAN module:
1.
Loosen the captive screw (1) that secures the memory module/wireless module compartment cover
to the computer.
44 Chapter 4 Removal and replacement procedures