check the minimum firmware installable on the console first
But yes that's what I used to downgrade mine don't need the esata station if your only going to downgrade
I would use something like wiixplorer if you can access the HBC and copy the data from sd to usb drive, check the data on usb drive is correct and then you can format the card
was beaten to it by Krestent
It make no difference bootmii boot2 or IOS or which version
try installing a different versions of the IOS's that the games need to run and try again found that helps sometimes. I had a few games which would just black screen or reset me back to system menu installed earlier versions of the...
the only thing missing is the cheat menu and I'll never use the wii's real nand again but the only problem is most app will be moving to IOS58 and it doesn't work well with sneek/uneek