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PowerByte - Firmware Update v3.0: Lowers Minimum Volume Level

  • Updated
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PowerByte – Firmware Update v3.0: Lower Minimum Volume

Is the lowest PowerByte volume still too loud? Firmware v3.0 lowers the minimum volume level.

Is This Update for You?

Install firmware v3.0 if the PowerByte is still too loud at its lowest volume setting.

Not your problem? If your PowerByte has a different issue, this firmware update may not be the correct solution.

What You Need

  1. USB flash drive – 32GB or smaller
  2. Computer
  3. Firmware file: update.ufw
Important: Format the USB drive as FAT32 and keep only update.ufw on it. Save any important files elsewhere first.

Step 1 – Download the Firmware

Click update.ufw to download the PowerByte v3.0 firmware to your computer.

After downloading, open the downloaded ZIP file and locate update.ufw.

Step 2 – Prepare the USB Flash Drive

  1. Connect the USB flash drive to your computer.
  2. Make sure it is formatted as FAT32.
  3. Remove any other files from the USB drive.
  4. Copy update.ufw directly onto the USB drive.
When finished: The USB drive should contain only update.ufw.

The firmware file should not be inside a folder. Safely remove the USB drive from your computer.

Step 3 – Install the Firmware

  1. Turn the PowerByte ON. It can be in any mode.
  2. Insert the prepared USB flash drive into the PowerByte's USB port.
  3. The screen will turn BLACK.

⚠️ The Black Screen Is Normal

The update has started. Do not turn off the PowerByte or remove the USB drive.

Wait about 16 seconds. The screen will briefly light up, you will hear several beeps, then the screen will turn off again.

✓ Firmware update complete.
Step 4 – After the Update
  1. Remove the USB flash drive.
  2. Turn the PowerByte OFF.
  3. Turn it back ON.
Your PowerByte is now ready to use.
Step 5 – Check That the Update Worked

After restarting, check that the PowerByte works normally in all modes.

Lower the PowerByte volume and confirm that the minimum volume is now quieter.

FM not scanning? Press and hold the FM button to scan for stations.
Update Did Not Start?

If the screen does not turn black, check:

  • USB drive is 32GB or smaller
  • USB drive is formatted as FAT32
  • File is named update.ufw
  • File is not inside a folder
  • USB drive contains no other files

Insert the USB drive again. If the update still does not start, try another compatible USB flash drive.

Minimum Volume Still Too Loud?

If the minimum volume is still too loud after completing the update, contact Avantree Support for further assistance.

Want to Return to the Original Firmware?

You can restore the original PowerByte firmware using the same update steps above.

Download the original firmware and follow Steps 1–5 again.

Need More PowerByte Help?

View PowerByte Guides

Still Need Help?

If you have trouble updating the PowerByte or the minimum volume is still too loud, submit a support request.

Contact Avantree Support

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