My Symfonisk made a random noise when we weren’t using it. It only lasted a second or so and sounded like interference. A few minutes later it happened. After it happening three times I unplugged the Sonos but it strangely still happened after it was unplugged.
The diagnostic number is 987395047.
Would anyone be able to tell me what’s going on?
Question
Strange noise/interference even after unplugging Sonos
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