Apple's iOS includes advanced power-management features that help extend the iPhone's battery life. One feature turns off, or puts to sleep, the iPhone's screen after a certain period of time. Some activities, such as watching a video, automatically disable this behavior. For other uses, you must manually disable the Auto-Lock setting to keep your iPhone from sleeping.

Warning

• The information in this article applies to iOS 6. It may vary slightly or significantly with other versions or products.

References

• Apple: IPhone User Guide For iOS 6.1 Software
• IT World: Change or Disable Auto-Lock on iOS Devices
• Tech-Recipes: IPhone: Change the Auto-Lock Delay

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