Dell Chromebook 3400 Service Manual page 56

4 Remove the single (M2.0x4.0) screw that secures the display cable bracket to the system board [1].
5 Lift the display cable bracket away from the computer [2].
6 Peel the adhesive tape that secures the display cable [3].
7 Lift the latch and disconnect the display cable from the connector on the system board [4].
56 Removing and Installing