Quality Guarantee: All screens are fully tested before shipping. Note: Without earphone and front camera, just as pictures show. Used to replace cracked, broken, dead pixel, damaged, touch not working, touch response problem, non-working screen. Follow the instructions. Before installation Turn off compatible with iPhone first. Keep compatible with iPhone turned off until all jobs are finished. Make sure in a clean environment, no dust and static electricity. Prepare all necessary tools. Watch the direction video, if you have no experience. During installation Disconnect the cable to the battery first when compatible with iPhone is opened. Connected the cables in the right places. Test the screen after connecting all cables on the screen. Screws have different size. All screws must be connected in the original holes. After installation Test all functions of the screen, display, touch response, 3D touch function. Display problems such as lines, spot are probably caused by static electricity. These problems can be solved by cleaning cables and charging compatible with iPhone. Is it easy to install? Yes, but please check some videos before installation, if you have no experience. Can I still have face ID function after installation? Yes, this screen replacement supports face ID perfectly. Does it come with front camera and other accessories that are on the regular screen? No, the front camera is not connected to the screen. You need to remove the speaker from the old screen.