Anyone's incoming call or any notification sound are still coming out from the speakers and not the earphones with the earphones plugged in? I'm with the noise cancelling earphones if that's how it's supposed to be?
All my previous phones mutes the speaker and you hear the ringtones/notifications through the earphones when plugged in
All my previous phones mutes the speaker and you hear the ringtones/notifications through the earphones when plugged in