This article explains how to enable and disable screen locking on devices running iOS 4 and up. It's broken down by iOS version and covers the ways to tell if screen locking is enabled. What if you ...

Check if the Portrait Orientation Lock is on; it stops the iPhone screen from rotating. Open Control Center and tap the lock icon to turn off rotation lock if it's active. Some apps don't rotate; test ...

Usually, when you hold your iPhone, it’s in portrait mode. With the iPad, it is usually in landscape mode. But there will be times when you will want to rotate the screen the other way. Whether it’s ...