Here some update on the problem of “Keynoard not found”:
Device is recognized only when the USB is connected while pressing “Shift” maining in firmware upgrade mode. In this mode USB is perfectly recognized and all device info for on USB looks OK.
when I unplug device again and plug it in without pressing the “Shift” key, nothing happens, no USB devices is recognized on the PC.
Tried upgrade again, and again, no change.
The question is : how can I change back to “normal” mode instead of Upgrade mode?
If it doesn’t work by the ned of the week I ‘ll return the device to the shop and get an IRIG or M-audio mini keyboard controller. For me not the same story again like the Origin.