Dell Inspiron 14 5440 Owner's Manual page 130

Figure 100. Removing the system board
Steps
1. Remove the two screws (M2.5x4.5) that secure the right hinge to the system board.
2. Rotate and open the right hinge.
3. Peel the tape that secures the I/O-board connector (IOBD1) latch to the system board.
4. Lift the latch and disconnect the I/O-board cable from the connector (IOBD1) on the system board.
5. Disconnect the speaker cable from the connector (SPK1) on the system board.
6. Lift the latch and disconnect the touchpad cable from the connector (TP1) on the system board.
7. Lift the latch and disconnect the keyboard cable from the connector (KB1) on the system board.
8. Lift the latch and disconnect the keyboard-backlight cable from the connector (KBBL1) on the system board.
9. Remove the two screws (M2x4) that secure the USB Type-C bracket to the system board.
10. Lift the USB Type-C bracket off the system board.
11. Remove the two screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.
12. Lift the system board off the palm-rest and keyboard assembly.
130 Removing and installing Field Replaceable Units (FRUs)