Wwan I/O Board; Removing The Wwan I/O Board; Installing The Wwan I/O Board - Dell Latitude 3420 Service Manual

WWAN I/O board

Removing the WWAN I/O board

Prerequisites
1. Follow the procedure in
2. Remove the microSD
3. Remove the SIM card tray
4. Remove the base cover.
5. Remove the battery cable.
About this task
The following image indicates the location of the WWAN I/O board and provides a visual representation of the removal
procedure.
NOTE: The following steps are applicable only for 4G LTE enabled systems.
Steps
1. Remove the two (M2x3) screws that secure the WWAN I/O board to the palmrest assembly.
2. Gently flip the WWAN I/O board toward right.
3. Open the latch and disconnect the WWAN cable from the connector on the WWAN I/O board.
4. Lift and remove the WWAN I/O board from the palmrest assembly.

Installing the WWAN I/O board

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
before working inside your
card.
for 4G LTE enabled systems.
computer.
Removing and installing components 87