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WLAN module
Description Spare part number
Broadcom BCM43142 802.11 bgn 1x1 Wi-Fi + BT 4.0 HMC combo adapter 753076-005
Intel Dual Band Wireless-AC 3160 802.11 ac 1x1 WiFi + BT 4.0 combo adapter 710662-005
Qualcomm Atheros AR9485 802.11 bgn 1x1 Wi-Fi adapter 675794-005
Intel Dual Band Wireless-AC 3160 802.11 ac 1x1 WiFi + BT 4.0 Combo Adapter 784638-005
Before removing the WLAN module, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 31), and then remove the following components:
a. Optical drive (see
Optical drive on page 32)
b. Top cover (see
Top cover on page 39)
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.
Remove the WLAN module:
1. Remove the antenna cables from the WLAN module (1).
2. Remove the Phillips M2.5x4.0 screw (2).
50 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts