Cynosa V2 Code 43 Error | Razer Insider
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My Cynosa V2 all of a sudden stopped working while I was using it. I opened up Device Manager and got this error message: "Unknown USB Device (Device Descriptor Request Failed)"



I have tried a hard reset on the keyboard (Esc + Caps Lock+ Space) with no luck. Looking for any help here, seems like this might be a hardware problem.
Were there any changes applied to your system/device before the issue? Have you tried reinstalling the drivers of your Cynosa V2? Do send me the serial number of your device via PM. That way, I can take a closer look and find possible solutions. Let's go from there.







I'll be locking this thread now.