A factory reset restores your Spark 40 to its default state.
Tutorial Video
Instructions
1. Turn the device off.
2. Press and hold the “TAP” button when turning on the Spark amp, and release the TAP button when it starts to blink.
3. Long-press the blinking "TAP" button until all four (1~4) LEDs blink once, then release the TAP button.
*The TAP button needs to be released as soon as all four LEDs start to blink.
*Short-press the TAP button to abort the factory reset.
4. If the 'TAP' button is blinking and the CH1 LED is on, the factory reset process is completed.