There was a hardware issue, but one that is well handled by the firmware solution.
I don’t know the very low level details, but the issue was the CANbus interface would be interrupted and ‘disappear’, and then not automatically re-initalise which required rebooting the Cerbo GX. This firmware update now re-initalises the interface without requiring the reboot of the device itself. Simple and effective.
In all but the most extreme cases where an RMA is required, and this is so far very rare, there will be no perceivable issue to the customer on the new firmware.
There will be a change made to the hardware itself, already in production, that also improves the signal it at the source.