4–18 Maintenance and Service Guide
Removal and replacement procedures
Before removing the WLAN module, follow these steps:
1. Shut down 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 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 4-7).
Remove the WLAN module:
Ä
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 computer functionality, and then contact technical support
through Help and Support.
1. Position the computer with the front toward you.
2. Loosen the two Phillips PM2.0×6.0 captive screws 1 that secure the wireless module compartment cover to
the computer.
3. Lift the rear edge of the cover 2 to detach it from the computer.
WLAN module (continued):
802.11 b/g/n WLAN module for use only in HP Compaq 6440b and 6540b models:
■ Intel Wi-Fi Link 1000, 802.11b/g/n WLAN module for use in Andorra, Antigua and Barbuda,
Argentina, Aruba, Australia, Austria, Azerbaijan, the Bahamas, Barbados, Belgium, Bolivia,
Bosnia and Herzegovina, Brazil, Brunei, Bulgaria, Canada, Cayman Islands, Chile, China,
Colombia, Costa Rica, Croatia, Cyprus, the Czech Republic, Denmark, the Dominican Republic,
Ecuador, Egypt, El Salvador, Estonia, Finland, France, French Guiana, Guadeloupe, Guam,
Georgia, Germany, Ghana, Greece, Guatemala, Haiti, Honduras, Hong Kong, Hungary, Iceland,
India, Indonesia, Ireland, Israel, Italy, Ivory Coast, Jamaica, Japan, Jordan, Kenya, Kuwait,
Kyrgyzstan, Latvia, Lebanon, Liechtenstein, Lithuania, Luxembourg, Malawi, Malaysia, Malta,
Martinique, Mauritius, Mexico, Monaco, Montenegro, Morocco, the Nether Antilles, the
Netherlands, New Zealand, Nicaragua, Nigeria, Oman, Pakistan, Panama, Paraguay, Peru, the
Philippines, Poland, Portugal, Puerto Rico, Qatar, Romania, San Marino, Saudi Arabia, Senegal,
Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden,
Switzerland, Taiwan, Tanzania, Thailand, Trinidad and Tobago, Turkey, United Arab Emirates, the
United Kingdom, the United States, Uruguay, the U.S. Virgin Islands, Venezuela, and Vietnam
572520-001
Description Spare part number
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