Learn how to extend the battery life on your phone. In this video you'll learn how to save battery power by using Battery saver, and how to optimize the battery usage of your apps and phone settings. For more information, go to http://www.microsoft.com/mobile/support
Learn how to use OneDrive cloud storage. In this video you'll learn how to set up automatic upload to OneDrive, how to upload individual files to OneDrive and how to share files stored on OneDrive.
You can connect to a Wi-Fi network to access the Internet with your Nokia Lumia. This may save on data connection costs and is usually faster than using a mobile data connection. In this support video you'll learn how to switch Wi-Fi on and connect to a network.
Learn how to use Storage Sense to free up space on your Nokia Lumia running Windows Phone 8.1. In this video you'll learn how to check available storage space, move apps and games to a memory card and how to clear temporary files from your phone.
Nokia Lumia 520: Get started