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}}
}}
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'''IOS4''' was a very primitive [[IOS]] that was used by both the [[Startup Disc Menu]] and the [[System Menu]] used in the factory process.
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'''IOS4''' was a very primitive [[IOS]] that was used by both the [[Startup Disc Menu]] and the [[System Menu]] used in the factory process. This IOS and the System Menu come preburnt at the factory, before any other discs are inserted.
{| class="wikitable"
{| class="wikitable"