Mine used T3s.

Be patient. I spent at least 10 to 15 minutes warming and trying to pry up the screen with my spudgers and such. It got so hot I would use one spudger to hold the Surface from the opposite side while pried with the other spudger from the other side. I would get a little lip up and slide and when I felt resistance then I would heat more and make my way around the screen. I continued that many times until I was able to use the suction cup to pull it up.