Do any games use IOS34 or is it just used by homebrew like the Hackmii installer? Specifically, I am wondering if I can use an official IOS34 instead of the Cioscorp one without breaking anything.
If I were you I would either dop-IOS IOS61 or IOS30 (only when you are on 4.0 on higher, I did this and it works great)
Since Nintendo has never made IOS34 a stub, it is indeed being used by something. There is no need to modify any IOS to use the HackMii Installer... in fact, the HackMii Installer will reject any Trucha-signed IOS, so you can't install it while cIOSCORP is installed.
The whole point of asking is because if IOS34 isn't used by any games, then it can be left as an unmodified IOS without breaking anything.
