I'm trying to replace the sounds folder in the US version of the game for the JP version. When I start the game, the game freeze just after "ART" logo finish to fade out. I guess it's because it try to load a sound file, but fail to do it. I still can go to the home menu, so it is just a game sided freeze. I tried changing the locale (I am on A9LH v1 + Luma 6.6 [insert string of number and letter] (dev)), but then it only does a bootloop when I start the game. I used two .3ds personal dump (tried four times to ensure that it is not a bad dump) of Unchained Blade reXX and two .cia personal dump of Unchained Blade US using Asia81 toolkit.