Apply a suction cup to the display, near the middle of the left edge.

Pull the suction cup with firm, constant pressure to create a slight gap between the display panel and the rear case.

If the screen is cracked, the suction cup may not stick. In that case, try lifting with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.

If the display doesn't separate even with significant force, apply more heat to further soften the adhesive and try again. The adhesive cools quickly, so you may need to heat it repeatedly.