3.
Remove the hard drive bracket (3) from the hard drive.
The hard drive bracket and screws are available in the Hard Drive Hardware Kit, spare part number
818113-001.
Reverse this procedure to reassemble and install the hard drive.
WLAN module
Description
Spare part number
Broadcom BCM943142 802.11 bgn 1×1 Wi-Fi + Bluetooth 4.0 M.2 Combo Adapter
792608-005
Intel Dual Band Wireless-AC 7265 802.11 ac 2×2 WiFi + Bluetooth 4.0 Combo Adapter
793840-005
Intel Dual Band Wireless-AC 3160 802.11 ac 1×1 WiFi + Bluetooth 4.0 Combo Adapter
784644-005
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 technical support.
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 bottom cover (see
Bottom cover on page 27
).
Remove the WLAN module:
1.
Disconnect the battery cable from the system board.
Component replacement procedures
31
