Marc has released Dop-IOS v4, an application that lets you download and install any IOS from Nintendo servers. You can also apply the trucha bug to them.
Dop-IOS能从任天堂服务器下载IOS,并且可以trucha之.
Version 4
* It seems that ES_Identify patch can be buggy in other IOS than 36. So now Dop-IOS is able to apply this patch only on IOS36.
* SD files now are stored on sd:/00000001 and they can be used in other applications.
* Now Dop-IOS v4 shows your installed IOS versions!