Dell Latitude 5401 Service Manual page 53

Steps
1. Locate the LED board slot on your computer.
2. Align and place the LED board on the slot on your computer.
3. Replace the single (M2x3) screw that secures the LED board to the computer.
4. Adhere the LED board cable to the adhesive strip on the palmrest.
5. Connect the LED board cable to the connector on the system board.
Next steps
1. Install the inner frame
2. Install the WLAN card.
3. Install the WWAN card.
4. Install the 2280 SATA SSD.
5. Install the battery.
6. Install the base cover.
7. Follow the procedure in After working inside your computer.
Disassembly and reassembly 53