Wwan Module - HP EliteBook 840r G4 Maintenance And Service Manual

WWAN module

The WLAN module and WWAN module are not interchangeable.
The WWAN module is available on select models only.
Description
LTE CAT4: Huawei HP lt4132, LTE/HSPA+ with GPS
LTE CAT9: Fibocom Intel XMM 7360 LTE - Advanced
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 bottom cover (see
5. Remove the battery (see
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:
WWAN antenna cable is connected to the WWAN module "Aux" terminal.
3. Remove the one Phillips M2.5×3.0 screws (2) that secure the WWAN module to the computer. (The edge
of the module opposite the slot rises away from the computer.)
Bottom cover on page
Battery on page
The red WWAN antenna cable is connected to the WWAN module "Main" terminal. The blue
30).
33).
Component replacement procedures
Spare part number
845710-003
L15398-001
41