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Reverse this procedure to install the hard drive.
WLAN module
Description Spare part number
Mediatek MT7630E 802.11bgn Wi-Fi Adapter and Mediatek Bluetooth 4.0 Adapter for use only
on computer models equipped with an AMD processor
710418-001
Atheros AR9485 802.11b/g/n WiFi Adapter for use on all computer models 675794-001
Ralink RT3290LE 802.11b/g/n 1×1 WiFi and Bluetooth 4.0 Combo Adapter for use on all
computer models
690020-001
Realtek RTL8188EE 802.11bgn Wi-Fi Adapter for use on all computer models 709848-001
Intel Centrino Wireless-N 2230 Combo Adapter for use only on computer models equipped with
an Intel processor
670290-001
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. 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 46).
5. Remove the service cover (see
Optical drive on page 47).
Component replacement procedures
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