Wwan Module - HP ProBook 4525s - Notebook PC Maintenance And Service Manual

Remove the WLAN module:
1. Position the computer right-side up with the front toward you.
2. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE:
white WLAN antenna cable is connected to the WLAN module "Aux" terminal.
3. Remove the two Phillips PM2.0×4.0 screws (2) that secure the WLAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
4. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE:
Reverse this procedure to install the WLAN module.

WWAN module

NOTE: Only computers with UMA graphics include a WWAN module.
NOTE: The spare part number for the HP un2420 Broadband Module is 531993-010.
CAUTION:
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.
The black WLAN antenna cable is connected to the WLAN module "Main" terminal. The
WLAN modules are designed with a notch (4) to prevent incorrect insertion.
To prevent an unresponsive system, replace the wireless module only with a wireless
Component replacement procedures
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