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Zygo Firmware Updates

Stay Current with the Latest Headphone Software


Keep your Zygo waterproof swimming headphones performing at their best with the latest firmware updates through the Zygo App. Firmware updates help support the best possible headset, transmitter, battery, and underwater audio experience.

We are constantly working to give you the best hardware + firmware experience via updates through our app, which is available here for iOS and here for Android.

Firmware Update Tips

Before starting, make sure you have a strong internet connection and that your Zygo headset and transmitter have at least 50% battery.

Some updates include multiple firmware packages, so the process may take up to 10 minutes if your headset requires all of them.

Do not navigate away from the Zygo App while the update is in progress.

Restart both your transmitter and headset after every update. If you do not restart both devices, the old firmware may still be active, and the app may continue to show that an update is needed.

When restarting, allow the headset and transmitter to pair before continuing. A successful connection is indicated by solid green lights.

It is normal for your Zygo to make sounds during the update. If you hear clicking or similar noises, do not worry — this can happen during the firmware update process.

For more help getting the most out of your Zygo system, visit the Zygo App page or learn more about Zygo’s underwater audio technology.

Firmware Update FAQs

What if I skip an update?

Your Zygo will continue to function, but it may not have newest features or all bug fixes. You will be prompted again later to do the update, or you can start the update process any time within the app: Menu > Headset > Firmware Updates

What if I get an error message?

Sometimes the update can get interrupted by activity on your phone or by radio interference. If this happens, restart your Zygo and try again. If this happens repeatedly, contact customer support: help@zygoco.com

My Zygo is connected for streaming music, but my app is stuck showing the message, “Connecting to your transmitter in data transfer mode.”

Make sure your headset serial number starts with “AC”. Older versions of Zygo do not have the ability to receive firmware updates, read battery levels, or track lap counting. If your headset’s serial number does not start with AC, you can navigate away from the firmware updates page.

I did an update, but it still says I need to do an update.

There are a few possible explanations:

  • Multiple updates are needed.
  • A previous update failed, in which case please try again.
  • You didn’t restart your device and the old software is still running, in which case please restart your Zygo.
  • A new update was just loaded to the server.

For further assistance, please contact help@zygoco.com.

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