>>29610866>>29610894>>29610930Here's how to downgrade your browser (Old 3DS-only):
https://www.reddit.com/r/3dshacks/comments/527304/cfw_o3dsonly_downgrading_the_web_browser_to_95022/You can also just import that QR into PKHeX: right click, copy link, go to PKHeX, hold Alt and click the pokémon icon on the top.
>GTS sharingYou're better off using PKMN NTR for this, since you can live-inject with it. The more competent givers from /ekx/ use this.