Dell Vostro 3580 Service Manual page 54

4. Remove the five (M2.5x5) screws that secure the left and right hinges to the system board, and palmrest and keyboard assembly [1].
5. Lift the palmrest and keyboard assembly at an angle [2].
6. Lift the hinges. Remove the palmrest and keyboard assembly off the display assembly [1, 2]
54 Removing and installing components