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!