I put clear packaging tape to stop glass on iPads. But the back glass on Samsung Galaxy phones has a piece of flexible plastic under the glass and hold it in one piece for the most part. It like the front windshield of a car, how it stays together after it's shattered. Watch a few videos on YouTube. Heat the edge of the cover and use a razor blade to get under the edge and once you have an opening use guitar picks and slide them in between the cover and the phone heat the edge as you go. Make sure that there are no sensors or cables in the way. I don't think there are on the s10e but make sure. It's not that hard to do it. And you can use a suction cup to try to lift the edge up but I have found that it usually doesn't work especially since you are heating it up and the suction cup doesn't want to stay attached. I hope this helps.