Continue holding up the bottom right arm of the midframe with one hand.

With your other hand, pry the top edge of the front shell (near the volume buttons) away from the midframe.

Lift the top right corner of the midframe away from the front shell until the headphone jack comes free of its cutout.

If you feel resistance, either the front shell is caught on the midframe or the screen-side sensor cable is stuck to the midframe. Work slowly and inspect these areas as you pry.

During reassembly, squeeze the top edge of the front shell onto the midframe until it snaps into place.