Looks like you never owned an Apple device. Every Apple part has a specific code which is only compatible with that particular device. My cousin had almost everything replaced including the camera from a third party and nothing worked, mind you it was a 6S. The camera and microphone failed, battery never charged properly and the whole phone was a total waste. Long story short, get it serviced by Apple or trade in for a newer device with an accidental damage warranty using Apple care plus.