so did i BUT it hangs at the loading screeni modded my wii u vwii and that is the first game i tested and it works and did not freeze when you first turn it on
i played it for a few minutes just to be sure
i followed this guide and only installed what it said http://gbatemp.net/threads/simple-guide-to-install-cios-on-vwii-backup-nand-and-keys.339890/