I heard. I heard it was because Brawl was dual layered game and some Wiis had trouble reading it. At least they fixed it quick.
I question this dude's sanity, seriously: Guy Microwaves 3DS XL & Tries To Sell It On eBay For $2,000 : StickTwiddlers
I question this dude's sanity, seriously: Guy Microwaves 3DS XL & Tries To Sell It On eBay For $2,000 : StickTwiddlers