HP ZBook 15u G3 Mobile Workstation (ENERGY STAR) User Manual download pdf (Page 58)

WWAN module

The WLAN module and WWAN module are not interchangeable.

The WWAN module is available on select models only.

Description Spare part number

HP lt4120 LTE/EVDO/HSPA+ SnapdragonT X5 LTE Mobile Broadband Module 800870-001

HP hs31110 HSPA + Intel Mobile Broadband Module 822828-001

Before removing the WWAN module, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet, and

then unplugging the AC adapter from the computer.

4. Remove the bottom cover (see Bottom cover on page 35).

5. Remove the battery (see Battery on page 40).

Remove the WWAN module:

1. Position the computer upside-down.

2. Disconnect the WWAN antenna cables (1) 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 one Phillips PM2.5×3.0 screws (2) that secure the WWAN module to the computer. (The

edge of the module opposite the slot rises away from the computer.)

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

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HP ZBook 15u G3 Mobile Workstation (ENERGY STAR) User Manual Page 58