Dell Latitude 5421 Service Manual page 74

Steps
1. Place the display assembly on the system. Align the screw holes on the display hinges with screw holes on the palm-rest
assembly.
2. Replace the four (M2.5x5) screws that secure the display hinges to the palm-rest assembly.
3. Close the display.
4. Route the WLAN and WWAN antenna cables through the routing guide and adhere the tape to secure the cables to the
system board.
5. Route the display and eDP cable through the routing guide on the system board.
6. Connect the eDP cable to the connector on the system board.
7. Connect the display cable to the connector on the system board.
8. Adhere the tape that secures the display cable to the system board.
9. Connect the IR camera cable from its connector on the system board (for models shipped with an IR camera).
10. Connect the touchscreen cable from its connector on the system board (for models shipped with a touchscreen).
11. Align the screw holes on the eDP cable bracket with the screw holes on the system board.
74 Removing and installing components