So from stock .297 the phone worked fine. Ever since updating to various OS, currently .540, i have had microphone issues. Sometimes when restarted the mic will work for calls and voice notes etc, however 90% of the time it doesnt work... people cannot hear me on calls, voice notes on bbm have no audio what so ever, however, if i record a video the phone picks up audio fine even when calling, voice notes do not? This tells me it may not be a hardware issue? Any experiences of this before? Anything i can try?