HP XT905UT Maintenance And Service Manual page 71

3. 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.
There are two different WWAN modules available, and each module has the antenna connectors
reversed.
4. Remove the two 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.)
Component replacement procedures 63