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WLAN module
Description Spare part number
Atheros WB225 1×1 802.11b/g/n Bluetooth Combo Adapter 675794-001
Broadcom 43228 802.11abgn 2×2 Wi-Fi Adapter 669832-001
Intel Centrino Advanced-N 6205 WLAN module 631954-001
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 50).
5. Remove the service cover (see
Service cover on page 52).
6. Remove the WWAN module (see
WWAN module on page 61).
Component replacement procedures
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