EON ONE MK2 Volume Scaling Not Fine Enough When Controlled From Bluetooth Device
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Brand:
- JBL
Affected Products:
- EON ONE MK2
Summary:
On units running firmware 5.2.9.0 or earlier the MASTER volume was coupled to the phone or tablet volume control when paired for Bluetooth Audio.
The volume stepped in increments of 10dB for most of the range and in increments of 2dB increments on the upper range. Precise control of volume was inconvenient.
Firmware version 5.3.2.0 addresses this issue by decoupling the control of volume from the Bluetooth device. Volume can now be changed from speaker and Bluetooth device separately. Firmware version 5.2.3.0 was made available from JBL Pro Connect app version 2.03.02 released in May 2025.
Troubleshooting:
Ensure that firmware is updated to 5.2.3.0 or later. Guidance for updating firmware is available from the article in the link below.
Updating firmware on EON ONE MK2
If the procedure above did not resolve your issue, please contact HARMAN Technical Support for next steps.
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