Why does my iphone6 screen go blank at times?
Several times I have had my Iphone6 lock up with a blank screen. I can hear the party on the other end speaking but I can't make anything work on my phone. I have tried holding the off button and the home button at the same time and this has worked at times. But today I could not make that work. After about 15 minutes the screen finally came alive and I was able to continue using it.
Any suggestions will be greatly appreciated.
iPhone 6, iOS 9.1