Okay, so here's my predicament.
About a month ago, I decided to install the Homebrew Channel and CIOS's onto my vWii, following this guide.
https://gbatemp.net/threads/simple-guide-to-install-cios-on-vwii-backup-nand-and-keys.339890/
At the time, my Wii U had about a month left with its warranty...