Main volume stuck at 0%



Hi there,
I have been having problems with the Main volume lately.
I am on Firmware 2.0.4-RC4
It started several day ago being stuck at 0% and when you turn the knob to the max it would go to 2% only.
Then I rebooted the firmware and when it finished with the upgrade started flickering between 64% and 66% and was doing that for 30 seconds and then started working normally again.
Today it is stuck and 0% and wouldn't move.
Everything else seems to be working fine.
I tried:
Switching of for 20...

Main volume stuck at 0%