Why are there horizontal lines on my screen?
Since I updated my iPhone 6 Plus with the newest update 10.1.1, these white horizontal lines appear on my screen. It's not a constant thing, only every now and then. When it happens, the touch screen doesn't work and I have to hit the power button to turn off the screen, and I have to do this several times before the screen goes back to normal. I can't answer phone calls because of it. My phone is in great condition, and I haven't dropped it. So is this a bug with the update or a hardware issue?
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