Dell NOT22427 Owner's Manual page 110

Steps
1. Connect the display cable to the connector on the display panel and close the latch.
2. Adhere the conductive tape to secure the display cable to the display panel.
3. 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.
4. Replace the four screws (M2.5x3.5) 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 WLAN card.
4. Install the 4G WWAN card
5. Install the base cover.
6. Install the SIM card.
7. Follow the procedure in
or 5G WWAN card, as applicable.
After working inside your computer.
Removing and installing Field Replaceable Units (FRUs) 109