Dell Latitude 5421 Service Manual page 84

Steps
1. Connect the display cable to the connector on the display panel and close the latch.
2. Adhere the clear tape to cover the display cable connector.
3. Adhere the conductive tape to secure the display cable to the display panel.
4. Close the display panel and the display back cover to assemble.
NOTE: Ensure that the display panel tabs are inserted into the slots on the display cover.
5. Replace the two (M2.5x3) screws to secure the display panel to the display back cover.
Next steps
1. Install the display bezel.
2. Install the display assembly.
3. Install the WWAN card.
4. Install the WLAN card.
5. Install the base cover.
6. Install the microSD card.
7. Install the SIM card.
8. Exit Service Mode.
9. Follow the procedure in
84 Removing and installing components
After working inside your computer.