IOS254

IOS 254 is commonly used for various purposes:

  • PatchMii uses this as a temporary IOS
  • System Menu 3.4 included a copy of IOS9 as IOS254 to block patchmii (and maybe to break some pirate tools but Nintendo got the wrong IOS then since most pirate tools use 249)
  • BootMii as an IOS is installed to this slot.