I have a Japan Wii with mod chip installed, but when I remove the account, I get this error 206651 where it says my serial is not wrong. There is a thread bout this http://gbatemp.net/index.php?showtopic=129617 which i think he has the same problem as me. I suspect when they install the mod chip, probably the mix up the housing and the mainboard. So is there anyway for me to check my Wii Serial using homebrew? I would like to remove the Wii Shop Channel Account to change the region! Thanks!