MY RAZER BLACKWIDOW CHROMA V2 DOESNT LIGHT UP/WORK

When you plug it in, does your computer detect your BlackWidow Chroma V2? If so, can you put up a screenshot of how it appears in the Device Manager? If possible, try to test the keyboard on another machine.

I tryied it on another pc but it doesn't work as well and when i plug the keyboard my computer doesn't detect the keyboard but if i go in device manager the keyboard is there http://prntscr.com/nkldf2 .
The problem is, if i try to ESC+CAPS and plug and unplug the light work but the keyboard doesn't work so i have no possibility to have the light on, i tryied as well to reinstall all drivers, unistall and reinstall Synapse but nothing work

I have another keyboard even razer and when i plug the other synapse and my pc detect it, i think is a keyboard problem, nothing about the pc

Try reinstalling the keyboard drivers via the Device Manager. If the problem persists, we are most likely dealing with a hardware failure. Do send me a PM with the serial number of your keyboard so I can validate the warranty status should we need to go for an RMA.

RZ03-02031100-R3H1 here it is

Annamarialoiacono
RZ03-02031100-R3H1 here it is

That would be the product number. The serial number would be the set of characters just below the bar code.