Reverse this procedure to reassemble and install the solid-state drive.
WLAN module
Description Spare part number
Intel Dual Band Wireless-AC 7265 802.11 AC 2×2 WiFi + Bluetooth 4.2 Combo Adapter (non-vPro) WLAN
module
901229-855
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 o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 30).
5. Disconnect the battery cable from the system board (see Battery on page 33).
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled "1/MAIN" connects to the WLAN module "Main" terminal. The
WLAN antenna cable labeled "2/AUX" connects to the WLAN module "Aux" terminal.
2. Remove the Phillips PM2.0×2.3 broad head screw (2) that secures the WLAN module to the keyboard/top
cover. (The WLAN module tilts up.)
Component replacement procedures 35
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