Can you give an example of where it does not work ??
When you are using whats app or switch on the phone speaker .. The microphone stops working and the other person can not hear you | Simple
I am also having the same issue before the pie update my mic and speakers to speaker phone worked perfectly and loud but now that I updated after waiting during a call while using speaker phone people say they can not hear me and I'm yelling into the mic and also while in the same call the speakers seem like there on low volume so I try to turn the in call volume high just to find out its turned up to the max.. now why is this happening. Another thing when it's off speaker phone and I have my it to my ear it's not as loud as it use to be. Even with music or watching movies etc.. pls fix this issue I did not pay off this phone just to send out in to get a refurbished one back