The sound is not working at all

1318

1

2017-03-11 20:36

The sound in my m3 note have suddenly disappeared , NO RINGTONE; NO MEDIA SOUND, NOTHING AT ALL !!
The only sound I can heard is when I have a call, but when I switch to Speaker, there is no sound again !


The firmware version is Flyme 5.1.12.0G Stable version

Please suggest me some solutions, is it a way to be sure it´s a hardware problem ?

Thank you!