You can also upgrade it for iPad Air 2 and iPad mini 2 and 3 efficiently. iOS 9 is currently available for iPhone 4s and models, which came afterward. Let's now have a detailed look at the key features of this powerful tool.Īnother thing you need to know when you are dealing with how to update iPhone 4/4s to iOS 9 hassle-free is the compatibility of your iOS device. The software enables you to either selectively or completely backup your iOS device data depending on your requirement. dr.fone is a trusted and 100% safe to use software that guarantees your data will be absolutely safe and secure with its Privacy Protection Policy. If not yet, you would require the recommended tool, dr.fone - iOS Data Backup & Restore to perform a full backup of your iPhone in just a few simple clicks. If you want to update iPhone 4s to iOS 9, then before do so, first ensure that you have made a complete backup of your iOS device. Part 1: 4 Things you Need to Know Before Updating iPhone 4/4S to iOS 9īefore we start updating our device, let's take a look at some tips and things that we should prepare before we update the iPhone.ġ.
