Hi, I wondered if anyone recognises these little lines I have along the bottom of my iPhone 6? My toddler was messing around with my phone and the next thing I know, the 'phone', 'safari', 'mail' and 'music' icons have a grey bar across them with little vertical white lines across (see photo) and this stops me from meant able to open these 4 apps. When any apps are open, the screen works as normal but when I'm on the home screen and tying to click on one of these 4 apps, I have to press the app button a load of times and finally it responds. So annoying! A hard reset did nothing. Any ideas?