How do I firmware update UNIT-4?

Update your UNIT-4 speaker with the below firmware update process.

Firmware 1.0.56 (latest) improvements:

  • Optimised charging and LED performance

The firmware update takes approximately 5 minutes for each UNIT-4.

How to update on iOS or Android:

  • Download the UNIT-4 App on iOS or Android
  • Use the walkthrough video below as a guide
  • Pair your UNIT-4 monitors to your phone using Bluetooth
  • Start the app and navigate to Firmware update
  • Follow the steps shown on the app
  • You will need to restart the speaker a few times in between update steps

Please do not hesitate to contact our Support Team if you have any questions or concerns — we are here to help! 

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