There is no firmware information available for the Yoyo (M) as these cannot be updated April 11, 2024 09:39 If you have any questions or queries regarding this, please contact our Support team who will be more than happy to help. Related articles How do I perform a factory reset on my Yoyo (M) speakers? What is the size of the screw thread on the Yoyo (M)'s? Yoyo (M) - Set-up and Troubleshooting Guide Why is there an orange light on my Yoyo (M)? Yoyo (L) - Quick Start Guide