Dell Latitude 3420 Service Manual page 96

About this task
The following image indicates the location of the display back-cover and provides a visual representation of the installation
procedure.
Steps
After performing the succeeding steps, you are left with the base cover assembly.
Next steps
1. Install the display cable.
2. Install the camera.
3. Install the display panel.
4. Install the display bezel.
5. Install the display assembly.
6. Install the I/O board cable.
7. Install the WWAN card
8. Install the WLAN card.
9. Install the base cover.
10. Exit the service mode
11. Install the SIM card tray
12. Install the microSD-card.
13. Follow the procedure in
96 Removing and installing components
for 4G LTE enabled systems. .
for 4G LTE enabled systems.
after working inside your computer.