I left gamestop yesterday with a used wii, the first generation model and I bought the Super Smash Bro for Wii-u. The disc is flawless but the system wont' read it. I keep getting the error, invalid disc. I have flipped the system horizontally, upside down, etc... and no luck. Now I have read that updating pass 5.3.2 is not a good idea. Is this a common problem? I have a few days I can return it to gamestop but then my hunt for a 5.3.2 or below firmware will start all over again. Any advice anyone can give me in my situation?