So i just bought a brand new Lumia 535 2 weeks ago and everything was working perfect until today i woke up. I was using whats app on my phone talking to a friend and everything was alright. Had the phone in my hand then 30 mins later my friend messaged me again and i tried to reply and i realized my touch screen just isnt responding in certain areas. Water has never touched or gotten into the phone and it has never fell before as i said its just a 2 weeks old phone. Whats happening?