Hi 

I have a out of warranty black widow v3 (2years 9 months) with 1 column of keys not working.
“0” , “P” , “;” , “.” and “fn” key not working. Anybody has similar encounter and wonder what would be the best course of action in your opinion. 

By the way, I have tried all cabled, BT and wireless method. I have also tried to reinstall software, remove software, out of demo mode. But seems I just cannot get that column of keys to work.