1. Put down a nice clean fresh piece of printer paper to work on. 2. Cleaning - I Cleaned the screen well with an automotive microfiber towel first then cleaned with the included rag. 3. Right before Installing the protector I blasted the screen with canned air to blast away any little bit of dust left. Hold the can upright or else the propellant chemical will come out with the air. 4. Use a heat gun or Hair dryer to warm the stubborn edges then hold them down with your finger while they cool. This eliminated every last stubborn edge I had. Don't set the heat gun to high and use the low speed setting. *******Disclaimer********** If you melt your phone because you didn't use common sense and heated it too long or set the heat gun too high, I take no responsibility. Just use common sense.