When I say new one. I mean new Audya

I think all these problems are simpler than we think.
I believe It can be a loose or bad cable or Connector. Inside
I mean on the 3rd sound board? What are the chances?

I had issues with my xd3 a few times. 4 times to be exact.
Twice was a flickering screen, The contrast would go and come
Opened it up and cable was half out of place
Another time. It would not load styles from floppy.
Opened xd3 again and connector Was totoally out of

see your symptom is it works. It doesn't. It works. It doesn't. It works..... So I think cable

and I know other people with similar situations
so it can be something as simple And cheap as removing. Resetting all cables. Or replacing with new