I watched videos on it for my previous phone. You had to use a heat gun to warm the glue but not heat it too much or you damage the screen. It was a bit of a knife edge temperature wise. Plus you then had to take most of the phone apart to get at the battery. It just wasn’t practical. Replacing the screen looked better, but was as easy as it was on an old phone I did. This stuff just isn’t designed with repair in mind.