Locate the longer ribbon cable and the pressure clamp that holds the cable in the connection port.

Using the plastic spudger, flip the black locking clip up.

The pressure clip will click when it has been disengaged.

Once the clip is unlocked, the cable should slide out without resistance

In photo 1 the device is oriented with the camera to the left and external buttons towards the bottom. In photo 2 the device is oriented with the camera toward the user. In photo 3 the camera is to the left.