Question about editing files between consoles (3ds)

[Ek6401]

Greetings to all community. My question is: Changing data such as Conutry, Sub Region anf 3DS Region from a save file affects to legality?

I've using the same save file between 2 3DS', one is USA Region and the other one JPN. So the Pokemon data not match with trainers info. 

I'm currently playing in the Japanese 3DS, can't change the language or contry, so the Pokémon I catch now it says are from Japan, but the trainer info says I'm from USA. If I change my trainer info, the Pokémon I catched in the previus console will be Ilegal? 

 

[Prejie]

Considerably, yes. Try to change one of those two to comply with the other.

[Delta Blast Burn]

If you are not/ don't plan on going online then don't worry about it.