Hi, I have Wii system menu version 4.3U and I wanted to use the letterbomb exploit to install homebrew channel on my wii. However, I think I accidentally chose 4.3E instead of 4.3U on the letterbomb site. As soon as I pressed the letterbomb in my messages, my Wii got frozen. What should I do now to avoid damage/bricking to my Wii? Would it be safe to just force shut down my Wii?