No sound output

Neckbone

I have no sound output from anything optical or rca. Was working fine now nothing.
I have DUDU7 running 3.5 OS.

I just did a factory reset and still no sound output

DUDU-Meng

Is there no sound when the main unit is pushed directly into the speakers?

Neckbone

DUDU-Meng correct, no sound output of any kind

DUDU-Meng

No sound after upgrading the system?
Or is it caused by setting up some program?

Neckbone

DUDU-Meng sound was working, I turned my truck off and when I turned it back on I had no sound so fitted different outputs and nothing

Neckbone

Then decided to do a factory reset and still no sound

Neckbone

I have unplugged the unit for the night and I will plug it back in in the morning to see if anything changes but I doubt it will help

Neckbone

Solved! Not sure what happened. I took the head unit all the way out of my truck, inspected all conditions and pins. Installed and no sound, did 2nd factory reset and now have sound

DUDU-Meng

It's been resolved, right?

Neckbone

DUDU-Meng yes