just mod it. cfw is so much better than flash carts and its not to to hard to do just use this https://3ds.hacks.guide/. Also I would say flash carts are more likely to get you banned in online games. and modding is region free , and if it gets bricked its not hard to get your files back. Modding my 3ds took me like 20-30 minutes to do so I suggest just modding instead.