Heat an iOpener and apply it to top edge of the display.

You may need to reheat and reapply the iOpener several times to get the phone warm enough. 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 OLED display and internal battery are both susceptible to heat damage.

While you are waiting for the adhesive to soften, read the next step to get an idea of where to pry.