The screen adhesive is very weak and you should not need to re-apply heat. If the screen does feel hard to slice, apply heat to the difficult area for one minute and try again.

Insert another opening pick into the right edge of the phone at an angle where a gap has already formed to prevent damage to the OLED panel.

Slide the opening pick around the bottom of the phone to cut the adhesive.

There is a delicate cable under the bottom-right corner of the screen. If you feel your opening pick snag on anything, pull it out and try again. Make sure your pick is angled downward and only inserted as little as is necessary to separate the adhesive (no more than 2 mm deep).

Leave the pick inserted along the bottom edge to prevent the adhesive from resealing.