my phone screen doesnt turn when i turn the phone from side to side

[iMore Question]

when I turn my phone from side to side, the screen doesn't change,why?

 

[anon(9602380)]

Welcome to iMore.

Is your screen orientation locked. On your screen in the top right corner do you see a circled arrow with a lock inside of it. If so, swipe up from the bottom of your screen and turn the screen orientation lock off.