#insufficient-space

Removing files and data from your iPhone to give more space to the iOS 10 update is a very easy, fast and no-brainer task. Your phone itself already has the capability for deleting one or more files and data that aren’t being used and not worth keeping for long on your device. But you can always use third-party tools and applications to do the job, like FoneDog - iOS Data Eraser, especially when you have lots of these big files to delete.