screen won't tilt when the phone is tilt horizontally

[Der Vang]

Hello, I have the Samsung Galaxy Note 3 and when I turn my phone my phone horizontally my screen doesn't change but stay vertically. How can I make it recognize it/ make the screen able to turn vertically as I turn it?

 

[kentuc794]

Swipe down from the top of your screen and find screen rotation button at the top and make sure it is highlighted green. If not tap it to turn it green.

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