fix : Wireless mic won't work on Android phone

Wireless Lavalier mic won't work with Android phone ?
This may be the cause (if your phone uses this).
You need to tick something on in settings.

It seems this may be an issue on android phones of  :
Oppo, Vivo, Iqoo, Realm and others (Chinese brand Android phones ?).  

Lavalier mic on Android phone with type C socket.

for those who can't find the setting :
there's an app on google play to check if you have it.

Playlist with my videos on this subject :
wireless/wired mic android phone fix