Chosen Solution
Was looking for temperature when using a hot plate for the front glass only removal for the Samsung S series phones?
S8 are not as bad as previous generations. I had one in and used about 160 - 190 c on the hot air station. I managed to get the point of a razor blade into the top of the screen, then worked it slowly with heat being applied at the same time around the top portion to get a pick in. It will take some patience to do it would damaging. I usually take the screen and touch glass out as one piece and then separate them using a board holder. So if you follow how I do it, once the screen and touch glass are separate you will need something thin to help cut through the glue without damaging the screen underneath. I use fishing wire and carefully get it between the glass and the screen. There a few videos on youtube, the procedure is quite difficult and although AMOLED is expensive I always try to get customers to buy a full-service screen as the finish is a 100 times better :) Good luck if you attempt it, my friend :)