WWAN module
Description Spare part number
HP hs3110 HSPA+ Mobile Broadband Module 748599-005
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 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 keyboard/top cover (see Keyboard/top cover on page 28).
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE: The #5/red WWAN antenna cable connects to the WWAN module Main terminal. The #6/blue
WWAN antenna cable connects to the WWAN module Aux terminal.
2. Remove the Phillips PM1.9×3.3 screw (2) that secures the WWAN module to the base enclosure. (The
WWAN module tilts up.)
Component replacement procedures 37
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