If your iPhone or iPad is having performance issues or slowing down, it could be that the device would benefit from a clean slate. Over time operating systems can pick up little kinks that affect the way they work, this is understandable as they are very complex software configurations. Sometimes it’s a good idea to completely reset a system so that it returns to how it was when it first came out of the box. This is called a ‘factory reset’. It’s also what you need to do if you want to wipe your iPhone or iPad if you’re thinking of selling it or passing it on to a friend or family member. So, …