How to stop auto-rotate screen on iPhone 4?

How to stop auto-rotate screen on iPhone 4?

Ios 7:

1. Swipe up from the bottom of the home screen to bring up Control Center.
2. The top row of the Control Center shows 5 circular toggles.

The furthest right icon looks like an arrow around a padlock - touch this icon to enable or disable rotation lock on your device.

3. Swipe down to dismiss the Control Center.

ios 6:Double tap home button and then on the bottom of the screen swipe all the way to the right until you see circular arrow inside a square logo. That is the screen lock/unlock rotation button

Try these steps:-
1. Double click the home button to bring up the multitasking bar.
2. Swipe right until the last set of icons is displayed in the multitasking bar (these will include play/pause and skip buttons for iPod or Pandora).
3. The furthest left icon looks like a circular arrow - touch this icon to enable or disable rotation lock on the iPhone.
4. A rotation lock icon will appear in the status bar next to the battery charge icon when rotation lock is enabled. This looks like a circular arrow around a padlock.

It was great I have done it, too much thanks