In this step you'll lift the screen. Be VERY gentle else you will break it. Insert the plastic opening tool in between the black plastic bezel and the glass screen edge along the sides and the top, gently loosening the adhesive. The screen will remain attached at the bottom edge, as if on a hinge.

You may need to use a hair dryer or hot air gun to loosen the adhesive holding the device together. Be careful not to heat the device too much however as you could cause damage!