Razer Black Widow

HI, I am clueless how to fix my black widow chroma not showing up in razer synapse 3.0 I tried; -Reinstalling drivers Reinstalling razer reinstalling razer and drivers deliting drivers and restarting then plugging it in again regesitry deleting usb universal usb deleting updating driver...

OKAY so im looking forward to buy an used Razer Blackwidow 2014 with Razer green Switch, since the price has dropped so much in the used market. So there is one selling for around 15usd For Razer Blackwidow 2014. But the switch for key "alt" has broken. Im looking forward to buy it and replace...