There are a lot of iOS updates that must be installed over the course of its lifetime. If your iPhone is getting on in age, you may notice that it takes more time than usual to install software updates.
Sometimes the iPhone update may finish downloading and installing on its own, but other times it will become stuck.
The process can be affected by the quality of your gear and the speed of your internet connection. The average time to update to iOS 9 is 30 minutes.
It’s recommended that you back up your images to a computer or iCloud before installing an iOS upgrade
Your iPhone images could be deleted without your knowledge if you allow Photo Steam.
After installing the iOS update, many customers said their images vanished. Images taken on an iPhone can be backed up to a computer for permanent storage