There are 5 wiring harnesses that need to be disconnected before completely removing the back cover.

There are two blue wiring harnesses on the front left and right side (located next to the sensor). They are represented by the red circles.

There is a multicolor wiring harness on the front center. This is represented by the orange circle.

Two black and red wiring harnesses are connected to the motherboard. This is represented by the yellow circles.