i can say that browserhax is broken with the new update because on emunand which i test does it no function. i look into the browser settings it seems that the browserengine was updatet.
If you want update your emunand to 9.2 then you can use the smash bros retail card or the rom if you have an us console. For eu you can use mama cooking Bon appetit retail or rom. For JP i dont know but there must be also a game with 9.x update.