If Spark MINI runs into an issue where the knobs/buttons don't respond anymore or freezes, or emits a high pitched or unusual noise, please follow the steps below to force shutdown and restart Spark MINI.
- Remove the USB cable on Spark MINI.
- Hold the POWER button for over 10 seconds. The amp will be forced to shut down.
- Release the POWER button, and hold it again until the Power Indicator lights up in blue to restart the amp.