You utilize the volume keys on your phone on a regular basis, whether you’re an iPhone user or a user of any other smartphone maker. They’re usually used to change the phone’s volume, but certain camera apps let you shoot a picture with the volume button. If you use your iPhone for long periods of time, you can end up with a malfunctioning volume button. Even though this may be the case for the vast majority of people, many iPhone customers have had to have their volume buttons repaired.