iOS 11: How to install the latest version of the iPhone and iPad operating system
iOS 11 is now available, and you probably want to upgrade. The upgrade process will take several minutes, and you should probably use a Wi-Fi connection so you don’t eat up your data allocation with your service provider.
There are two ways to install iOS 11. The first allows you to do it directly on your iPhone or iPad. The second lets you do it by connecting your device to your Mac.