HP DV4-2153 Maintenance And Service Manual page 74

NOTE:
blue WWAN antenna cable is connected to the WWAN module "Aux" terminal.
5. Remove the two Phillips PM2.0×4.0 screws that secure the module to the computer (2).
6. Remove the WWAN module (3) by pulling the module away from the slot at an angle.
NOTE:
Reverse this procedure to install the WWAN module.
66 Chapter 4 Removal and replacement procedures
The red WWAN antenna cable is connected to the WWAN module "Main" terminal. The
WWAN modules are designed with a notch (4) to prevent incorrect insertion.