To make this step easier, you can prop up the heated edge of the phone on something that is about 0.5 inches (13 mm) thick, like an eraser. This will angle the phone so that the opening tool is easier to insert.

If you don't have a small object for propping, you can (carefully) perform this step at the edge of a desk or table to achieve the same angle of entry.

Lift the rear panel's bottom edge with your suction cup, opening a slight gap between the panel and the frame.

This may require a significant amount of force. If you have trouble, apply more heat to further soften the adhesive, and try again. The adhesive cools very fast, so you may need to heat it repeatedly.

Once you've created a gap, press the flat end of an opening tool into the gap.

The rear glass panel is fragile and can break if you use too much force or attempt to pry with metal tools.