LifeQ30 sound quality issue

Hi,

I have these Q30 for three days and now the sound quality is very bad. I tried connected them to both laptop and android phone but still soemthing is wrong.

  1. First of all, when you change NC profile it only makes a beep when in the past it was tellin which profile is used now when music plauys it pauses!
  2. Even on the loudest you can barely hear anything
  3. All music is sound like a very bad quality MP3.
  4. With the cable connected AUX it sounds better but the buttons are not responding.

I have charged them and reset them but still the same issue.
NC is working by the way.
What is the problem here?