Spark 40 Firmware Troubleshooting – Help Center

If you encounter any of these problems after a firmware update, follow the steps below to get an alternative updater:

- Update Failure: The update didn't finish successfully.
- Device Problem: The Spark is unresponsive or 'bricked.'
- LED Issue: The LED lights on the Spark are blinking.

Obtaining the Alternative Firmware Updater

Locate the chatbot in the bottom right corner of this page.
Enter the serial number of your Spark amp into the chatbot.
If the chatbot didn't prompt you to enter the serial number, please type in 'Spark 40 Alternative'.

You can find the serial number of your Spark 40 on the rear of the unit, adjacent to the USB port. The serial number for the Spark follows this format: S040Cxxxxxxx (12 digits).
The chatbot will then provide you with a link to download the alternative firmware updater.
System Requirements for the Updater:
- macOS: 10.13 or later
- Windows: 8 or later
The updater does not support all other systems, including Linux, ChromeOS, iOS, iPadOS, Android, or any other systems not listed. Ensure your system meets these requirements to successfully use the firmware updater.

Unzip the File: Extract the downloaded file.
Connect Spark 40: Turn on your Spark 40 and connect it to your computer with the provided USB cable.
Run the Updater: Right-click Spark40_FWUpdater_with_log.app and select "Open" to start it. A Terminal window will open.

If you encounter a warning window, exit and right-click to open the file again, and click 'Open' to proceed with the updater.
Complete the Update: Wait until the Terminal window displays "Firmware upgraded!" and your Spark 40 powers off automatically.
Verify the Update: Disconnect your Spark 40 from the computer, power it on, and reconnect it to the Spark app via Bluetooth. In the Spark app, tap on the product card, scroll down to the bottom, and check the firmware version.
Report Issues: If the update is unsuccessful, export the text from the Terminal window by clicking on the menu: Shell -> Export Text As… and send the exported file to us.

Unzip the File: Extract the downloaded file.
Connect Spark 40: Turn on your Spark 40 and connect it to your computer with the USB cable provided.
Run the Updater: Right-click Run_Updater_With_Log.bat and select "Run as administrator" to start the updater.
Wait for Reboot: Wait until Spark 40 reboots automatically. The LED lights will return to normal.
Check the Update: Disconnect Spark 40, turn it on, and reconnect it to the Spark app via Bluetooth. In the Spark app, tap the product card, scroll to the bottom, and check the firmware version.
Report Issues: If the update is unsuccessful, send us the log.txt file from the updater’s folder.

Should you have any questions regarding the process, our support team is always ready to help!