Upgrade Guide

2.3 Updating
2.3.1 Current Version Check
Right-click on ACU16-C/NHB32-C in the CobraNet Discovery window, and select “Update Firmware”.
The window for updating will appear after the progress bar is shown for a while as below.
The current firmware version will be shown in the Current Firmware Version” column on the window for
updating. It should be updated if the version is older than 2.9.16 such as “Yamaha ACU16-C/NHB32-C
CobraNet version 2.8.8.
<Caution> Version 2.21.16 is only for new CM-1 hardware.
Functionally, it is the same as 2.9.16.
Since it becomes impossible to return to 2.21.16 when a downgrade is accidentally applied to 2.9.16,
don't apply a downgrade by any means.
The example below shows 2.9.4, which indicates that updating is required.