Firmware update

Short answer

Ensure the firmware is up to date by connecting the product to the Marshall Bluetooth app. The app confirms if the firmware is up to date in the 'About' section of the app.

Firmware version 2.5.5

  • Added new acoustic parameters improving user listening experience.

  • Various bug fixes for issues found during testing.

Firmware version 2.5.3

  • Optimisation of wear sensor logic (reduce occurrence of random pause when worn).

  • Fixed volume adjustment for AUX audio in the Marshall Bluetooh app.

Firmware version 2.5.1

  • Optimisation of the Wear sensor logic has been implemented (during start up, UI sound, random pause etc.).

  • Improved battery synchronisation between headphones and different mobile phones.

  • Improvement regarding AUX and Bluetooth audio switch behavior.

  • Improved reconnection of the headphones when in range.

  • Improved handling when headphones have low battery (low power notification will be prompted at 5% battery power and will allow 30min playtime to keep the battery at stable state).

  • Improved app connection when charging the headphones.

  • Fixed the click noise issue when enabling/disabling the Adaptive loudness feature in the app

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