Dell Latitude 7280 Owner's Manual page 25

5 Lift the base of the computer away from the display assembly.
6 To remove the display assembly:
a Place the base of the computer with the display assembly at 270 degrees (laptop) or 90 degrees (tablet).
NOTE:
closed tablet configuration, the display should be at 90 degrees.
b Remove the M2.5 x 4.0 screws that secure the display hinge brackets [1].
If the system is used as a laptop, then display assembly should be at 270 degrees and for a fully
Removing and installing components 25