You can go ahead and install the homebrew channel any time you like, however if you're wii system is at 4.2 then you need to install the latest version of it, which will work with 4.2. As for Bootmii. If you're intending to use it for protection it offers then you should know that it doesnt offer much protection at all on 4.2 system menus, as it installs as a IOS. Reason for this is Nintendo overwrote and completely removed the systems boot 2 process, which Bootmii occupies on system menus below 4.2. So Bootmii really has no protective features for you at this stage. The only thing it allows you to do is boot into linux via MINI, or MIKE. You can also use SNEEK with it as well.
Besides you shouldnt worry about things being incompatible if you dont mess with CIOSs (Custom IOS), USB backup launchers, wads, or apps you got no clue about which arent hosted here. If you stick to apps hosted here you shouldnt have any problems at all, and nothing should go wrong with your wii.
Edited 2 time(s). Last edit at 02/04/2010 04:40PM by nightwishfan1.