Dell XPS 15 Service Manual page 72

Figure 29. Disconnecting the cables
1 routing guides
3 tapes (touch-screen cable)
5 tape
7 display-cable bracket
7 Turn the computer over and open the display at an angle of 90 degrees.
8 Rotate the computer and place it on the edge of the table in a position that allows access to the screws on the display hinges.
9 Remove the six screws (M2.5x5) that secure the display hinges to the palm-rest assembly.
10 Carefully lift the display assembly from the palm-rest assembly.
72 Removing the display assembly
2 tape (display cable)
4 touch-screen cable (optional)
6 screws (2)
8 display cable