Prepare an iOpener and heat the back of the phone along one edge for about two minutes, or until it's slightly too hot to touch. This will help soften the adhesive securing the back cover to the phone.

You may need to reheat and reapply the iOpener several times to get the phone warm enough to cut the adhesive. Follow the iOpener instructions to avoid overheating.

A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the internal battery is susceptible to heat damage.