Firmware update 2.0 audio not working

Hi guys I’ve recently updated the Firmware with the latest version (2.0) but when I start the consolle Audio and some of the light doesn’t work (like the one for the pitch, also I cannot control it). I’ve tried also downgraded it with the 1.6.2 but the problems are still there. Have you got any idea how to fix it? I was thinking about re upgrading it back to 2.0 because at first the audio was working. The problem showed up only when I restarted it. Maybe if I re upgrade it the problem will go away.