On the left side it is a very thin strip of adhesive—but there are other places where there is alot more adhesive—If you look at the black part of the new adhesive-if you have the phone specific adhesive thing—you will get an idea what you might be trying to push through at any given spot on the phone. orient the new one over the old screen to line up holes etc-to understand where the adhesive is.
Complete novice. Getting old screen off was time consuming! I was too afraid of ruining something by overheating. Spent many hours trying to use iopener, afraid to risk bursting it in microwave. Read many comments in the iopener use guide; a guy said to get the screen temp up to 120-130F. Saw several youtube videos esp. Witrig one on replacing Moto x4 screen, they used heat gun 100C=212F so I got braver and put my phone on kitchen hot plate. Measured temperature by laying stem of candy thermometer on the surface. When hot plate got to 150-160F I finally got a pick under phone ‘s glass edge & got the screen off. Hot plate temp. not stable, guess phone was there a few minutes. May have damaged display but was replacing it anyway. Now new screen installed everything working properly! I’m not sure I was using the suction cup when I finally was able to push the pick under the edge.