<p>Apple iPhone 5s(Photo: KAREN BLEIER AFP/Getty Images)Story HighlightsUse 'switch control' to control your iPhone with your headA quick shake of the phone can un-do typosSet a location-based reminder</p><p>Did you know that your cherished iPhone hides secrets from you? That's right, a simple nod of the noggin could shift the way you use this precious gadget.</p><p>Apple's iPhone is a revolutionary gizmo that has changed the mobile landscape forever, but even if you've had one for years, there are still a few things you probably don't know about it. Each major update that Apple rolls out and there have been many brings new features and changes. Here are just a few of the things you've likely missed along the way.</p><p>1. CONTROL YOUR PHONE WITH YOUR HEAD</p><p><a href="http://www.wltx.com/story/tech/2014/03/01/iphone-secrets/5925125/">Keep reading...</a></p>