There is no reason to downgrade your Sm other than to restore region free capability of a hardmod.
First I would like to say this is one of the best forums I've seen yet!! I've found a lot of info and have been given great advise.
I have a brand new Wii running 4.2U. Serial number LU123....
I've decided to hack it to run CFG Loader. I've read over the "Hack any Wii" guide written my maui and have a question. It mentions that you can downgrade from 4.2 to 4.1 (optional). Is this recommended? I have no interest in backing up out of region games. I've also read that 4.2 does not allow using boot2. Would downgrading to 4.1 fix this and make my Wii better protected against bricking??
Thanks again in advance....
What about installing bootmii as boot2? Is this blocked by 4.2 and could be fixed by going to 4.1? Any advantage of using boot2 for bootmii? I'm not sure, but I think I read that you should backup your nand but if you didn't install bootmii as boot2 it may be for no reason.
Boot2 is way better than bootmii as IOS. Not sure if the 4.2 update modifies the ability to to install as boot2, but downgrading is not going to repair that anyhow. If your wii is boot2 capable the hackmii installer will let you know. You should back up your nand either way. If you have bootmii as IOS the backup has a lot less use for you, but could be your last resort to save your wii in the event of a full brick. With boot2 you are able to just restore the nand yourself if the hits the fan. With IOS install you cannot do it, you have to take your wii to someone with the ability to flash your nand. They will need that nand backup to do it. Follow mauifrogs softmod any wii guide in my signature. Downgrading is optional, you make the call on that. Cios/darkcorp is something you should skip alltogether.
skellinator has given you some good advise. And to answer your question about Boot2, no.. the system menu has nothing to do with being able to install bootmii as boot2. Older Wii's had a vulnerable Boot1 which allowed for the exploit of boot2 to be installed. That however was fixed by Nintendo in mid 2008. There is no way around that. If the hackmii installer tells you it can't be installed then it can never be installed as boot2.
I think the belief that 4.2 is what stops people from installing bootmii as boot2 comes from the fact that 4.2 updated boot2. A lot of guides say that it uninstalled bootmii (although that's not technically what it did, it overwrote your old boot2), so people assume that there is something in 4.2+ that blocks bootmii as boot2. You rarely find a mention of boot1 (and never boot0, although that isn't related).
"Macs are the Perfect Computers," said the Perfect Idiot.
Thanks again for all the great info....