Troubleshooting Spark 40

Factory Reset

• Turn off the device.

• Press and hold the TAP button when turning on Spark amp, then release the TAP button when it starts to blink.

• Long-press the blinking TAP button until all four (1~4) LEDs buttons blink once, then release the TAP button.

• The TAP button needs to be released as soon as all four LEDs blink.

• Press the TAP button to cancel factory reset.

• If the TAP button is blinking and the CH1 LED is on, this means the factory reset process is now complete.

• This process will reset all four presets stored on the Spark amp as well as its bluetooth pairing information. Remove Spark Amp from recognized devices in Bluetooth settings before pairing again.

Bluetooth Reset

If you encounter any Bluetooth pairing issues, please try resetting the Bluetooth function on your Spark amp to see if the issue persists.

Bluetooth Reset Process

1. Turn the device off.

2. Press and hold the “Preset 4” button (for 3 seconds) then turn on the Spark amp.

3. Release the “Preset 4” button until the TAP button starts to blink. Then the reset is done.

   Make sure to remove Spark Amp from recognized devices in Bluetooth settings before pairing again.

If you still experience the same Bluetooth issue after performing the reset, please send Positive Grid a request.

No USB Audio from Spark Amp

1. Make sure the music volume on Spark’s top panel is turned up.

2. Make sure the volume of your computer and applications is turned up.

3. If there is more than one connection, the priority will be AUX > USB > Bluetooth. Only the audio of higher priority will be played. Please make sure to disconnect the audio channels not in use.

4. If you’re on Windows, please make sure you’ve installed Spark’s audio driver.

5. Switch to another USB port and/or USB cable. Avoid using a USB hub if possible.

No Bluetooth Audio from Spark Amp

1. Make sure the music volume on Spark’s top panel is turned up.

2. Make sure the volume of your audio source (smartphone/tablet) and applications are turned up.

3. If there is more than one connection, the priority will be AUX > USB > Bluetooth. Only the audio of higher priority will be played. Please make sure to disconnect the audio channels not in use.

4. Close all background apps on your device to avoid interference.

5. Turn off Bluetooth on all nearby devices (Bluetooth speakers, Apple Watch, etc) to avoid interference.

6. Try another iOS/Android device if possible and see if that helps.

Computer Doesn't Recognize Spark during Firmware Update

1. Try another USB port, then run the firmware updater again. Note: please do not use a USB Hub.

2. Try unplugging and replugging the Spark USB cable.

3. Make sure to run the firmware updater as the system administrator.

4. Try another computer

“Spark Firmware Updater.app” is not from the App Store

1. Right-click on the firmware updater.

2. Select "Open".

3. Click "Open" on the alert window.

Firmware Update Fail

1. Try to reinstall the firmware, click on the "Eject" button at the end of the procedure, and unplug the USB cable.

2. Try another USB port, then run the firmware updater again. Note: please do not use a USB Hub.

3. Try unplugging and replugging the Spark USB cable.

4. Make sure to run the firmware updater as the system administrator.

5. Try another computer.

No Sound Output After Firmware Update

1. Try to reinstall the firmware, click on the "Eject" button at the end of the process, and unplug the USB cable.

2. Complete a factory reset.