iphone 6 screen freezes frequently
I have iphone 6 running iOS version 9.3.1
Phone screen is freezing frequently. I can see the screen but touch does not work. If I lock the phone by pressing Power button, after that it works for few minutes. But every now & then it freezes. It happens with all applications even on Home screen. Not sure what causing this.
Appreciate if anyone can help !
iPhone 6, iOS 9.3.1