While the heat from an iOpener is sufficient to separate the rear cover, it might cool down while you set up the Anti-Clamp. Reheat the rear cover if you need more time to set it up.

Place an object under your phone so it rests level while between the Anti-Clamp's arms.

Wait one minute, or until the adhesive separates, for a gap to form along the bottom edge of the phone.

Insert an opening pick into the gap between the rear cover and the frame.

If the adhesive doesn't separate, twist the handle clockwise one quarter turn and wait another minute. Apply more heat with a hair dryer or heat gun if the rear cover cools down.

Remove the suction cups from the phone using their pull-tabs and set the Anti-Clamp aside.