Hello Mr. @Christine_ASUS
, thank you for your response.
1. I'm using FB Messenger version 2188.8.131.52.118.
2. I updated to version QKQ1.WW_Phone-17.2017.2004.424-20200414.
3. The calling function app in stock android works in some calls (the volume has a small lower in two ways) and in other calls the hearer can't hear my voice.
I can't use microphone in FB Messenger and/or in other apps, for example, PUBG Mobile game.
4. The calling/voice chat function works well with HEADSET in all apps, but again the volume has a bit small in two ways.
5. The speaker works well.
Again, thanks your support.