Serial number unknown

I have the same problem. Can't register my new Blackwidow Elite keyboard.

KreapinDeath
I cant register my black widow keypad. Pls help!

If your problem is the same as I had it was trying to work out what the first two characters of the serial number were. I thought it was an uppercase i then a zero, but it turned out the second character was an uppercase o not a zero. So the first two characters were IO not I0. Hope this helps.

I tried that as well, and no go. But thanx!