Okay so DOP IOS MOD has a opotion to change system menu should i do it? i want to go from 4.2 to 4.0
That's an excellent way to brick your Wii. Be careful with DOP-IOS ok.
DOP-IOS is not the app I'd used to change System Menu though, that would be Wad manager, install System IOS followed by System Menu wad for your region, or use AnyRegionChanger.Originally Posted by Wiibrew
Downgrading from 4.2 is very dangerous and has caused loads of bricks, that said some have succeeded. If you do not have bootmii/boot2 consider against this course of action, it could be expensive for you.
Not really doing much Wii stuff these days.