Backup Your Files
If you only have time to follow one of these steps, this is the one.
Before you download and install iOS 10.3.3 on your device, it's imperative that you backup the data stored on your device(s).
Every time Apple releases a major update we hear and see horror stories about people losing precious files. Photos, videos, the list goes on. The odds of you losing this data are slim but it's impossible to predict what might happen.
Fortunately, we have a guide that will walk you through the backup process using iTunes. If you don't want open up iTunes, we don't blame you, we also have a guide that details the backup process via iCloud.
This is important for everyone but it's especially important for those of you moving to iOS 10 from an old piece of software like iOS 8 or iOS 7.
The transition from one of those is a little more treacherous than a move from something newer like iOS 9.3.5 or iOS 10.2.