HP ZBook 15 Base Model Mobile Workstation User Manual download pdf (Page 64)

WWAN module

Description Spare part number

HP hs3110 HSPA+ Mobile Broadband Module 723895-001

HP lt4111 LTE/EV-DO/HSPA+ Mobile Broadband Module 704030-001

HP lt4112 LTE/HSPA+ Mobile Broadband Module 704031-001

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. 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

Battery on page 50).

5. Remove the service cover (see

Optical drive on page 54).

Remove the WWAN module:

1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.

NOTE: The WWAN antenna cable labeled “5” connects to the WWAN module “Main”

terminal labeled “5”. The WWAN antenna cable labeled “6” connects to the WWAN module

“Aux/GPS” terminal labeled “6”.

2. Remove the Phillips PM2.0×3.25 screw (2) that secures the WWAN module to the system board.

(The WWAN module tilts up.)

56 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts

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HP ZBook 15 Base Model Mobile Workstation User Manual Page 64