Insert an Opening Pick into the gap between the midframe and the screen frame where the sim card tray was.

The plastic is thinnest in this area and flexible, so you should be able to force your Opening Pick into the seam.

Move your Opening Pick down the right side of the phone and around the bottom corners.

On the left side, only move the Opening Pick up halfway, and stop before reaching the power button.

Go back to the right side and move your Opening Pick over the top, but stop after the top left corner before getting to the buttons.