HP ProBook 640 G1 Maintenance And Service Manual page 76

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.
3. Remove the WWAN module (3) by pulling the module away from the slot at an angle.
NOTE: If the WWAN antenna cables are not connected to the terminals on the WWAN module, protective
sleeves should be installed on the antenna connectors, as shown in the following illustration.
Reverse this procedure to install the WWAN module.
66 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
The WWAN antenna cable labeled "5" connects to the WWAN module "Main" terminal labeled