Notice: The privacy screen protector is made with ultra-fine shutter technology, which will affect the sensitivity of fingerprint recognition, especially for mobile phone with front light sensor fingerprint unlocking design. It is advisable to set facial recognition first, so as not to affect the normal use of the mobile phone. Installation steps: 1> Use cloth to clean phone screen. 2> Use #1 wet wipes to clean the screen. 3>Use dry wipes #2 to clean the screen again. 4> Use the dust absorber to clean the dust on the screen. 5> Peel off the lower protective layer (back). 6> Match all the holes and edges of the protector to the phone. 7>Put down slowly, this kind of tempered glass film is with automatic adsorption function, can be attached well to the screen. 8>Scratch the screen to move bubbles with a scraper or cloth if bubbles remained, work done. Notice: Adhering to the protective film is not an easy job, please patient during installation. Make sure your phone screen is completely clean and dust-free before installation. Adjust the angle to make sure no bubbles remain. If there is still any bubble, please do not be anxious, you can check if it will disappear after 24 hours. If it cannot disappear within 24 hours, please contact us by email, we will give you a satisfactory solution. Your support will be greatly appreciated, thanks for your cooperation.