HP EliteBook 840 G9 Maintenance And Service Manual page 55

or region. If you replace the module and then receive a warning message, remove the module to restore device
functionality, and then contact technical support.
Before removing the WWAN module, follow these steps:
1. Prepare the computer for disassembly (see
2. Remove the bottom cover (see
3. Disconnect the battery cable from the system board (see
Remove the WWAN module:
1. Carefully disconnect the WWAN module antenna cables (1) from the WWAN module.
NOTE: Computer models have one to four WWAN module antenna cables. The antenna cables have tags
that identify them with a number that corresponds to a terminal on the WWAN module. Connect the
antenna cable to the corresponding WWAN module terminal.
2. Remove the Phillips M2.0 × 2.5 screw (2), and then remove the WWAN module (3).
Preparation for disassembly on page
Bottom cover on page 45).
45).
Battery on page 47).
WWAN module 49