Wwan Module (Select Models Only) - HP ProBook 640 G1 Maintenance And Service Manual

WWAN module (select models only)

Description
HP hs3110 HSPA+ Mobile Broadband Module
HP lt4112 LTE/HSPA+ Mobile Broadband Module
HP lt4111 LTE/EV-DO/HSPA+ Mobile Broadband Module
CAUTION:
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. 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:
"5". The WWAN antenna cable labeled "6" connects to the WWAN module "Aux/GPS" terminal labeled
"6".
2. Remove the Phillips screw (2) that secures the WWAN module to the system board.
74 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
To prevent an unresponsive system, replace the wireless module only with a wireless module
Battery on page
Service cover on page
The WWAN antenna cable labeled "5" connects to the WWAN module "Main" terminal labeled
64).
65).
Spare part number
723895-001
704031-001
704030-001