I have my Wii modded to system menu 4.2. I brought it home for Christmas, where we have a legit copy of Wii Sports Resort. The disc channel prompted me to perform a system update before I could play. Will updating cause any of my homebrew stuff to stop working? I have a backup of my NAND stored on the computer, so if it does break, I can just reload all the prevoius config, but I'd really like to avoid to doing that if at all possible. Is this a safe update, or should I avoid it?