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4.2rev04 update
Date history
Release dateUSA Flag.png June 22, 2010

JAP Flag.png June 22, 2010

EUR Flag.png June 22, 2010

KOR Flag.png June 22, 2010
System Menu IOSIOS80
CDN-added IOSIOS58
CDN-updated IOSIOS9, IOS12, IOS13, IOS14, IOS15, IOS17, IOS21, IOS28, IOS31, IOS33, IOS34, IOS35, IOS36, IOS37, IOS38, IOS55, IOS56, IOS57, IOS61
Wiimpersonator log (U)
Wiimpersonator log (E)
Wiimpersonator log (J)
Wiimpersonator log (K)
Version History
Preceded by4.2rev03
Major revision4.2
Succeeded by4.3

The 4.2rev04 update was a batch IOS update released shortly before 4.3, much like 3.4rev02.


  • Fixed HackMii Installer Userland+Syscall IOS exploit in all IOSes (including IOS58, which was previously not on NUS)
  • ES_AddTitleFinish now checks signatures
  • IOS9 now has a build tag
  • Removed the error 001 SDK update from IOS15, since it was completely pointless, as no disc games use IOS15
    • IOS21 still has this SDK version
  • Added IOS80 to prepare for 4.3.