tbh, your screwed.
You installed 4.1 system menu with, i suspect, a stub ios 60.
Your wii is dead. Savemiifrii is the same as savemii, if one doesnt work, neither will the other.
Without bootmii and a NAND backup i suspect there is nothing you can do, although other people may have something for you to try.
For future reference, NO game requires a system menu update, EVER!
You have been a member since 2008, yet you went elsewhere for advice, hopefully you have now learnt a valuable and, possibly, expensive lesson.