Spark 40 Firmware Update Troubleshooting

Quick Check

Before using the alternative firmware updater, try these quick fixes first:

• Run the updater as administrator (Windows: right-click → Run as administrator).
• Unplug and reconnect the USB cable if your computer does not detect Spark 40.
• Connect directly to your computer's USB port — avoid using a USB hub.
• Unplug other USB devices to prevent potential conflicts.
• Try another USB port on your computer.
• Try another computer if the update continues to fail.

Troubleshooting

Alternative Firmware Updater

If your Spark 40 is unresponsive after a failed update, use the Alternative Firmware Updater to recover it.

Get the updater: Use the chatbot in the bottom right corner. Enter your Spark 40 serial number (found on the rear of the unit, format: S040Cxxxxxxx) or type "Spark 40 Alternative" to get the download link.

System requirements: macOS 10.13+ / Windows 8+. Does NOT support Linux, ChromeOS, iOS, iPadOS, or Android.

For Mac

1. Extract the downloaded file.
2. Turn on Spark 40 and connect it to your computer via USB.
3. Right-click Spark40_FWUpdater_with_log.app and select "Open". A Terminal window will open. (If blocked, see this guide)
4. Wait until Terminal shows "Firmware upgraded!" and Spark 40 powers off automatically.
5. Disconnect, power on, and reconnect via Bluetooth. Check firmware version in the Spark app.
6. If unsuccessful, export Terminal text (Shell → Export Text As…) and send to support.

For Windows

1. Extract the downloaded file.
2. Turn on Spark 40 and connect it to your computer via USB.
3. Double-click Run_Updater_With_Log.bat or right-click and select "Run as administrator". (If blocked, see this guide)
4. Wait until Spark 40 reboots automatically and LED lights return to normal.
5. Disconnect, power on, and reconnect via Bluetooth. Check firmware version in the Spark app.
6. If unsuccessful, send us the log.txt file from the updater folder.

See Also

• Factory Reset for Spark 40 
• Spark 40 Firmware Release Notes