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[[Revolution OS]] contains code that cancels the [[error 001]] checks if the current IOS is below IOS30, or is IOS254 or higher. Both of these checks existed in late 2007 (seen in the [[IOS21]] [[NAND Boot Program]]), before BootMii/PatchMii was released, which may mean there is also a real IOS254 used internally. On top of this, v2 uses content ID 1, so there must have been a version before it, most likely v1.
[[Revolution OS]] contains code that cancels the [[error 001]] checks if the current IOS is below IOS30, or is IOS254 or higher. Both of these checks existed in late 2007 (seen in the [[IOS21]] [[NAND Boot Program]]), before BootMii/PatchMii was released, which may mean there is also a real IOS254 used internally. On top of this, v2 uses content ID 1, so there must have been a version before it, most likely v1.
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v1 was most likely a copy of IOS9v516, since it only has one content, although it is unclear what purpose a second copy of IOS9 would serve. Nintendo probably assumed PatchMii was an installer for their IOS254v1, which they assumed had been leaked and was being used to restore the signing bug, which led them to push v2 to everybody.
== Titles using this IOS ==
== Titles using this IOS ==