Welcome to TNW Basics, a collection of tips, guides, and advice on how to easily get the most out of your gadgets, apps, and other stuff. Have you ever been messing around with your iPhone and the whole display randomly slides halfway down your screen for no apparent reason? And how you can get it to not do that? Never fear, we’re here for you. This is actually a feature called Reachability. By moving the top of the screen down, it allows users who might not be able to reach the far corners of their screen — say, because of small…

This story continues at The Next Web

Or just read more coverage about: iPhone