Dell Latitude 3390 2-in-1 Owner's Manual page 39

4 To release the keyboard:
a Remove the screws that secure the keyboard shield to the keyboard.
b Lift the keyboard shield away from the keyboard.
5 To remove the keyboard:
a Open the latches and disconnect the keyboard backlight cable [1] and keyboard cable [2] from the system board.
b Remove the screws that secure the keyboard to the computer chassis [3].
c Lift the keyboard away from the computer chassis [4].
Removing and installing components 39