I figured this is as good as any place to ask...
I ordered a Wii U and it arrived, but they sent me the wrong kind (I was supposed to get 3D world and Nintendoland physical copies but they gave me Mario Kart 8 preinstalled.)
Here is the serial: FW42804839 [4]
What firmware can I expect to find on it?
why dont you send it back and demand the right console?