For most of the people having multible problems I think most of us dont know we are getting stuck when trying to install the Hermes part.
Ok you have Cios 249 rev(doesnt matter) and you have Hermes v3 or v4 and you install it onto your sd card just like you were supposed to.. run it just like you were supposed to. Off it goes onto the black screen and downloads..stuff. At the bottom, what you may not see is this thing were it says Bad Hash. It goes by fast.. there is no indication that you have not install everything fine.. and Off you go to play MH3 with no joy. You download the offline version of the install and still Bad Hash. As I see there may be a wad file that fixes this issue..look that up. I fixed it by having Hermes Patch cios 250 .. it downloaded.. no Bad Hash. I still run Cios 249 .. I do not know why patching Cios 250 worked I was really using it to test if Hermes was just broken . I have been playing MH3 for days now.. My wife is NOT HAPPY. But that was my fix. I play it with Wiiflow.. I play it with Config .. I play it online.. I play it in my sleep.. I play it while I'm on the toilet.. The only time I'm not playing it is when I am playing Black Ops. I got off the game to come here and post this and now my wife is on the Wii playing Tetris.. I need to buy another Wii. Good luck.