Do you mean you didn’t have the problem before the update?
As this topic is a ‘microphone’ issue, which is rather broad, would you
- clarify the version numbers before and after the update,
the network you are using, - does it happen to all your contacts, as it may be related to their network
- is it happening only via wifi calling with What’s app or other instances
- What network are you on?
The only issues I have are irregular and consist of two issues only during wifi calling via WhatsApp, I sometimes get low volume early in the call which resolves itself and less frequently echo.