Dell Latitude 7280 Owner's Manual page 24

c battery
d WLAN card
e WWAN card
3 Peel the tapes that secure the antenna cables and un route the cables from the routing clips.
4 Disconnect the :
a IR camera and touchscreen cable [1].
b Remove the M 2 x 1.7L screws that secure the eDP bracket and lift it away from the computer [2].
c Disconnect the eDP cable from the system board [3].
d Disconnect th G-sensor and eDP cables [4].
24 Removing and installing components