When you run 3DS0450 – Pokemon X MULTi7 with gateway 3ds, you may encounter such a situation below:
The saved game data is corrupted ….
This is not because gateway 3ds, and this is caused because the game archive by .sav.
You can do this: ↑+B+X .
BTW, if you order gateway 3ds with TF card from 3DSEU.COM, you will get 3DS0450 – Pokemon X MULTi7 ROM in TF card!
If you do not find where to download Pokemon X MULTi7 ROM, pls give us a reply! Thanks!