Razer Blackshark v2 + soundcard | Razer Insider
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Good day

I am receiving an "item serial number is unknown" error. I have changed any 0's to O's and 1's to I's, but still receive the same error.

Kindly help as I can not register my device.

Thanks in advance

i cant tell what is an o or what is 0 on the s/n number pls help 


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