WWAN module
CAUTION: The WWAN module and the WLAN module are not interchangeable.
Description Spare part number
HP hs2340 HSPA+ Mobile Broadband Module 632155-001
HP un2430 EV-DO/HSPA Mobile Broadband Module 634400-001
HP lt2510 EV-DO/LTE Mobile Broadband Module (requires Long Term Evolution panel) 634513-001
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 48).
5. Remove the service access cover (see
Service access cover on page 50).
Remove the WWAN module:
1. Position the computer right-side up with front toward you.
2. Disconnect the WWAN antenna cables (1) and (2) from the terminals on 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.
3. Remove the two Phillips M2.5×3.0 screws (3) that secure the WWAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
56 Chapter 4 Removal and replacement procedures
