So here is my story. I accidently uninstall the ios70 on a 4.2u when I was rushing to quickly finishing my bro's wii and receive a black screen after restarting his wii. Yea that wasn't smart of me:(. So I search through the forums and heard that its impossible to fix this problem but with a infectus it may be possible but I didn't like that method because I don't have any soldus skills. I try using bootmii which I have a copy of his nand backup which bootmii didnt boot up on start using the Gamecube controller way. I alos try holding reset while turning on the power but no luck either. His wii blue light flash once if that helps. So asking forum for help if there is another way.
And thanks for helping out. Gonna take a nap check in the morning been at it for at least 6 hours.