Downloading copyrighted files is a crime, creating your own backups is not.
There are numerous tutorials on YouTube and prior posts in this thread. Obtaining ROM data is unrelated to pk3DS, so please refrain from asking these types of questions in this thread.
How about linking us one instead of asking us to sift through 40 pages of text.
pk3DS: Pokémon 3DS ROM Editor and Randomizer
in ROM - 3DS Research and Development
Posted
How about linking us one instead of asking us to sift through 40 pages of text.