Use a hair dryer as per the suggestions and this will definitely make the job easier and reducing the risk of breaking the display . Keep a steady pull of the display, don’t rush and it will start to show the small separation gap. An issue is that it will go back in place if you stop pulling before you can use the spudger tool. The suction tool that came with my repair kit did not have a ring on it as per the guide picture. It has a blue handle that is open on the side. I sat at my kitchen desk and opened a drawer. I hooked the open edge of the suction handle around the drawer side edge which me a third hand. I held the phone with one hand and pulled it away from the desk drawer. Once the separation started I could use my other hand with the flat edge of the spudger to complete the separation. Hope this helps.