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WWAN module
Description Spare part
number
UNDP HSPA EVDO Birlion MINICARD WWAN module 531993-001
Before removing the WWAN 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 36).
5.
Remove the hard drive bay access cover (see
Hard drive on page 38).
Remove the WWAN module:
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.
Disconnect the WWAN antenna cables from the WWAN module.
NOTE: The red WWAN antenna cable is connected to the WWAN module “Main” terminal.
The blue WWAN antenna cable is connected to the WWAN module “Aux” terminal.
Component replacement procedures
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