DDJ WEGO-W wont boot (frozen lights)

Always worked, with a Windows Laptop and with a MacBookpro.

Today the console doesn't seems to pass the "illumination diagnostic powerup cycle".

All the leds are lit and it is not recognized at all, not even by "windows device manager", not a "blip sound" when usb plugged. It seems absolutely not started.

I tried the flash firmware procedure, but if I turn on the power while pressing the two headset buttons nothing happens, al the lights are still stucked and not cycling as it should always do

Any suggestion?