I am using Samsung galaxy A71. It's just 2 months old. And I am having the following issue from the very second day I got my phone. The mobile is working fine. Suddenly when I try to answer a call my mic stops working and the receiver can't hear me. So I have to restart the phone and call back again. This happened once when I tried to have a WhatsApp call and I happened to know that mic is used by another app. But no other app was running while I was using WhatsApp. Most often this issue happens with my phone. Please fine me a way to solve this issue.