How to turn off screen rotation for iPhone 6 Plus?

How to turn off screen rotation for iPhone 6 Plus? - 1

Pull up from the bottom of the screen and click the icon that looks like a lock with a circle around it. It is the far right one on the top.

Control Center - Tap lock with arrow icon (screen rotation lock) - Done

Slide up from the bottom of the screen to open control centre, then tap the lock icon with an arrow around it, it's the one of the far right