I know that this is an old (one year) thread, but with the january update (2018) I suddenly have no sound from my IQaudio DigiAMP+. Everything looks correct, but suddenly I have no sound what so ever.
Any others with similar issue, and more importantly anybody with suggestions to how I can debug this.
If nothing else I will try another fresh image on it and see if there is sound then (or even worse it is hardware failure…)
edit: moved to [SOLVED] IQaudio no sound after january 2018 update