@the306bobby Can I ask you for help? This is not a specific error for firmware. I'm trying to use OSS Audio on the Sapphire device. I get the problem of non -working lower dynamics (the upper and jack work). Most likely the case is the mixer configures. I added more logistics to AGM to check it. I would like to hear your opinion. Log below (from the start and when playing music). Thanks in advance if you decide to help me