Apple's latest iOS update, version 8.0.1, is so buggy that when some users updated, it not only disabled their phone's TouchID security features but also knocked out their cellular service.


Apple has since pulled the update that squashed the spirits of so many early adopters. If you've updated and now find yourself with a largely useless phone, Mashable has provided this handy guide on how to downgrade your phone's software back to iOS 8.