After update iPhone's microphone or speaker not working during calls
I have i7, it was working fine until i get an update
Now during GSM /WhatsApp calls i can not hear ring tune nor other person can listen me. If i play video it works fine. I am not able to even send a voice note on WhatsApp also
I reset my phone but I noticed that the update is not gone, it is still showing that the OS is updated.
Any suggestions? how to uninstall an update or any patch from iphone expected soon?
[Re-Titled by Moderator]
Earlier iPhone models