Using the phone intensively or dropping it from a height causes the damage to the “HOME” button, which is responsible for returning to the main phone menu or for reading a fingerprint. If you have such a problem, you can contact our service center to resolve this issue. We also want to draw your attention to the fact that the “HOME” buttons, which read the fingerprint (starting with the iPhone 5S) can not be completely replaced since there is an ID security key inside the button. That means that the phone will work after the replacement, but the fingerprint will not be able to process.