Using Donna’s iPad Mini running iOS 7.1.2 as a guinea pig for my upgrade to iOS 9 is turning out to be a complete nightmare. The iPad became stuck in the dreaded Slide to Upgrade screen where it’s just showing a white screen and the words Slide To Upgrade but you cannot do anything on the screen.
I wasn’t able to restore the iPad due to it’s backup encryption so my only option was to wipe and restore back to factory settings. If you don’t have anything on the device that you’d like to keep then this option is for you. The other workaround is to create a backup, restore to factory settings and then restore the backup prior to upgrading. However I think this issue is affecting those that are skipping the updates from iOS 7 to iOS 9 so it would be best to start with iOS 8.4.1 if you can. Here’s what I did below: