5. Touch ID Problems
Apple may have made the switch for Face ID for its premium flagship this year, but there are still a ton of iPhones out in the wild with Touch ID.
Unfortunately for those users, iOS 11.1 may break the fingerprint authentication platform. Though it doesn’t seem to be a widespread issue at this point, some are reporting that Touch ID has either become buggy or has stopped working entirely after updating to iOS 11.1.