All of our displays are. 100% tested and fully functional. Quality is our main priority, so you can rest assured that this screen will work without any defects. No dead pixels, no dust, no discoloration. Our screens are recommended by 100's of professional iPhone repair shops that use them in their stores daily!
Feel free to contact me if you have any questions. Ear Speaker Mesh Dust Guard. 3D Touch Digitizer (Real Force Touch).