To download iOS7 on your compatible iOS device, plug in your device to a power source, tap the Settings icon, tap General, tap Software Update, then tap Download and Install. If you use a passcode to unlock your device, enter it to authorize the download.
Before you download iOS 7, back up your content to iTunes or iCloud. When downloading a new version of iOS, you need to have enough free space on your device. If the download fails due to a lack of available space, you must manually delete content, such as applications, photos, videos or anything else using storage.
A Virtual Private Network, proxy connections or a poor wireless connection may obstruct the iOS update servers contacting your device. If you are unable to download iOS 7 wirelessly, use iTunes. First, install the most recent version of iTunes. Plug in your device to the computer and open iTunes. In the summary pane on the left side of the application, select your device, click Check for Update, and then choose Download and Update. IPhone, iPad, and iPod touch users experience new features and capabilities with each update of iOS.
IOS debuted in June 2007. Users download over 20,000 applications per minute using an iOS device, as of 2015. According to Apple, iOS is the most advanced operating system in the world.