WLAN module
Description Spare part number
Intel Centrino Wireless-N 2230 802.11 b/g/n 2×2 WiFi and Bluetooth 4.0 combination adapter, for
use with computer models with Intel processors
670290-005
Qualcomm Atheros AR9485 802.11 b/g/n 1×1 WiFi Adapter 675794-005
Qualcomm Atheros AR9565 802.11 b/g/n 1×1 WiFi and Bluetooth 4.0 Combination Adapter for
use with computer models with Intel processors, not supported on Ubuntu Linux, (select models
only)
690019-005
Ralink RT3290LE 802.11 b/g/n 1x1 WiFi and Bluetooth 4.0 Combination Adapter (select models
only)
690020-005
Ralink RT5390R 802.11 b/g/n 1×1 WiFi Adapter (select models only) 691415-005
IMPORTANT: Make special note of each screw and screw lock size and location during removal
and replacement.
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.
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 34).
5. Remove the keyboard (see
Keyboard on page 38).
6. Remove the top cover (see
Top cover on page 42).
50 Chapter 4 Removal and replacement procedures
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