1. Please Clean Your Phone Properly. Please Note That There Should Not Be Any Kind Of Dust On The Phone. 2. Before Planting Uv Tempered Glass, Please Note That The Back Polythene Of The Tempered Glass Should Be Removed. 3. Please Note To Cover The Speaker And Charging Area Of Your Phone With Protective Film 4. After Removing The Polythene, Use The UV Glue, Put The Uv Drop On Your Phone Screen, Then You Put The Tempered On It. 5. When The Uv Tempered Glass Is Applied Properly. Then Show Uv Light On That Tempered For At Least 2 To 3 Minutes. Install Carefully VZZR is not Responsible For Wrong installation / fix this UV Tempered Glass