My iPhone 7 has suffered the same fate. Worked fine until the update. Now any app that requires connection to the microphone doesn’t work. Including FaceTime, Skype, Voice Memos, phone, and guitar tuner. So i’m Now having to make calls via the iPad, while I wait for the next update.
Seriously Apple, desks should be getting cleared for this honker of an update. The engineer snag list should read thus:
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Question 1: Does the iPhone still work as an ACTUAL PHONE?!
(Note to engineer - If answer is Y then proceed. If answer is N then please start again.)
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Please Apple. Please. Sort it out!