Hi, I am on 4.3 and I want my old 4.2 install back with the Trucha etc. restored. No guides have worked so far. I thought why not restore my NAND backup I made earlier? Right? Wrong. 'This dump is from a different Wii' and it is NOT. And yes I've searched and neither the terminal commands (I am on a mac) nor the BootMii fix .exe (ran it in Parrallels on my mac on Windows) fix it. RestoreMii will still not accept the old NAND file. So now what?! (The 4.3 guide won't work for me because it won't let me downgrade IOS15) so I am left with a Nintendo 4.3 without a Trucha for now and no vulnerabilities? And here I was under the impression that making a NAND backup would save me from this. It does not work. Great. I am not amused and in need of some serious help here. PS: Am on a mac but can run Windows XP SP3 through Parrallels. ANY help to fix my Wii is very much appreciated.