Careful ..delicate work. I also used a hot hair dryer around the perimeter for just a couple minutes to help loosen the adhesive bond. I then used my sadly short finger nail to help loosen the edge. I placed dental floss under the corner & carefully lifted the display very very slowly. This worked within about 3 minutes. As mentioned earlier the adhesive used in the iPhone 6s is very strong but this routine worked like a charm & was quick!