Dell Latitude 5421 Service Manual page 99

Steps
1. Place the dummy SIM-card slot filler into its compartment on the palm rest.
NOTE: Ensure that the dummy SIM-card slot filler is aligned with the ribs on the palm-rest assembly.
2. Press the dummy SIM-card slot filler until it clicks into place and ensure it fits securely into the SIM card slot.
Next steps
1. Install the palm-rest assembly.
2. Install the display assembly.
3. Install the keyboard assembly.
4. Install the smart card
5. Install the LED board.
6. Install the power-button
7. Install the system board.
8. Install the assembly inner
9. Install the speakers.
10. Install the heat sink -
11. Install the battery.
12. Install the WWAN card.
13. Install the WLAN card.
14. Install the 2280 solid-state drive
15. Install the memory module.
16. Install the base cover.
17. Install the microSD card.
18. Install the SIM card.
19. Exit Service Mode.
20. Follow the procedure in
reader.
board.
frame.
UMA or discrete based on the system configuration.
or 2230 solid-state
After working inside your
drive.
computer.
Removing and installing components 99