Included with your screen is the vacuum tool. The vacuum tool is what will assist you to remove a module from your screen surface. You'll need to do this if you're replacing a module due to maybe damage that has occurred or if you have a pixel issue on that specific module. To turn your vacuum tool on, there is a switch on the bottom and then another button on the top that will power that. To utilize your vacuum tool, simply apply pressure to your screen module, turn it on, and give it a pull. Whenever you need to service within the cabinet, you'll need to remove the modules. So when you're removing the modules, if you have gloves, be sure to use them. It's gonna prevent oils from getting onto the modules. And keep mindful that the edges of the modules are the most fragile point of those.