Troubleshooting : Erratic behaviour
Short answer
If your speaker behaves erratically, try performing a factory reset or check for software updates in the Marshall Bluetooth app.
There may be several reasons why your Willen II speaker is behaving erratically. Try these tips to solve the problem:
Connect your speaker to the Marshall Bluetooth app. Follow the instructions in the app to check whether new firmware updates need to be installed.
More guides
View allSearch Support
Contact Us
Our chat assistant can help you troubleshoot, manage your order and connect you to our support team.





