Pokemon Sun and Moon Import edited model help

[pokemonfan91]

I really need some help here, I have been finding ways to do it but kept on failing, I downloaded the latest Ohana3ds WIP and export the texture from it and edited the TGA or PNG Texture, but after I edited them I can't import them back to ohana3ds... There are people who successfully edit the texture and put it back to ohana3ds in pokemon sun and moon, so I definitely without any doubt know that it is possible. If anyone here know how to do it please help me out, Thanks.