Hacking About MH4U savedata transfer

[Crimsonflare]

Hello! I couldn´t find this in the tutorial, so I´m asking for help here...

I used to play MH4U in my 3DSxl... But I bought a New3DSxl and I couldn´t make a system transfer because of versions and because of Gateway (my 3DSXL is 4.1 and New, obviously, 9.0). Can I transfer my old save to the New3DS? How can I do this? Thanks