Wwan Module - HP EliteBook 840 G1 Service Manual

WWAN module

NOTE:
The WWAN module and the WLAN module are not interchangeable.
Description
HP lt4111 LTE/EV-DO/HSPA+ Mobile Broadband Module
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HP hs3110 HSPA+ Mobile Broadband Module
Before removing the WWAN module, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4.
Remove the battery (see
5.
Remove the service cover (see
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE:
The blue WWAN antenna cable is connected to the WWAN module "Aux" terminal.
2. Remove the Phillips PM2.0×3.0 screw (2) that secures the WWAN module to the base enclosure.
58 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
Battery on page
Service cover on page
The red WWAN antenna cable is connected to the WWAN module "Main" terminal.
50).
48).
Spare part number
704030-001
704031-001
723895-001