Troubleshooting : The speaker is not responding
Short answer
Turn the speaker off using the volume knob. Wait a full 15 seconds, then turn the speaker on again. If the issue persist, perform a factory reset.
If you are experiencing difficulty with your Stockwell II speaker not responding, the likely cause is that a software problem has occurred.
- Turn the speaker off by turning the volume knob counter-clockwise until you hear a click. 
- Wait a full 15 seconds, then turn the speaker on again. 
- If the issue persist, perform a factory reset. 
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