Latest Software Update - 10.0.1
The latest software upgrade sent over the network to my phone today is doing way too much, and now my phone has become unresponsive to clicking phone options, i.e., Favorites, Recents, Contacts, Keypad, Voicemail. Sounds have changed, messages from Facebook Messenger have changed, the way I get to my passcode has changed; what else could go wrong with this update and can I go back to the previous one?
iPhone 6s Plus, iOS 10, null