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→Version history: confirmed some details about v0 (the first known IOS!?)
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−{| class="wikitable"+|-+! Version+! Trucha Bug?+! Notes+
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==Overview==
+{{Infobox IOS
−IOS3 is a stub IOS present in some Wiis. No known functional version has ever been found. Some prerelease development channels in a leak of files from BroadOn have shown channels using IOS3.
+| initialRelease = 122E
−| version = v65280
−| type = special
−| status = private
−| stubvariant = 2008
−}}
−|-
+| v65280
+'''IOS3''' is a [[stub IOS]] present in [[RVL-CPU-20]] Wiis, whose functional version used by dummy titles, such as those installed by the [[Wii Backup Disc]] to install the development certificates. No console has been found with a functional version, and the functional version is more than 16 versions behind the state at the factory, so partial bits cannot be recovered either.
−| N/A
+| [[Glossary#S|Stub IOS]].
+IOS3 and [[IOS4]] are also the only two [[IOS]]es stubbed on the [[Wii mini]], since most IOSes will hang on the Wii mini due to the WiFi module not responding.
−v65280 starts at CID 0x10 (16), meaning there were at least 16 versions before due to old IOSes not having build tags, and probably more because IOS content IDs used to be formatted as -CAFExxxx. Alternatively, there may have been one monolithic version and one modular version using the release CID scheme.
+The [[System Menu]] defaults to this IOS if the system version in a disc [[TMD]] is 0-0. Despite this, dummy disc partitions (e.g. update partitions and [[Drive Test Disc]]) use IOS4.
+== Titles using this IOS ==
+* dummy-cls.wad
+* dummy-loc.wad
+== Version history ==
+{{IOS version history|
+{{IOS version|v0|?|Installed by [[RVL_DIAG]]'s <code>swupDiag</code> dol. Has build tag <code>os_devel</code> and 0x7e8b0103 at the end of the file.}}
+{{IOS version|?|?|Used in the factory on [[RVL-CPU-20]] and later for an unknown purpose.}}
+{{IOS version|v65280|stub|[[Stub IOS]] present on [[RVL-CPU-20]] and later. Not available on NUS.}}
+}}
+{{Navbox IOS}}
{{Navbox IOS}}