Dell Latitude 14 Rugged Owner's Manual page 34

4. Perform the following steps as shown in the illustration:
a. Unlock the latch door[1].
b. Lift it downwards to open it [2].
c. Remove the screws that secure to the system board.
5. Perform the following steps as shown in the illustration:
a. Remove the screws that secure the system board to the computer [1].
b. Lift the system board from the computer [2].
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