My iPhone 6 is stuck in a LARGE LETTER AND NUMBER mode and I can't reset it or access anything.
My iPhone 6 was purchased in April. The screen is stuck in a mode that is the size of one letter filling the entire screen. If I hit the power and round buttons at the same time it gives me a black screen, then a white apple, the the apple jumps to a larger size and I'm right back to an unusable screen. How do I fix this?