Your adapter does one thing at a time. Pick what it does, check your saves and Pokémon, and keep its firmware up to date.
Connect it from a Chrome, Edge or Android browser to see which mode it is running and install an update or a different mode. On iPhone or iPad, use the Kizuna app.
Your adapter runs one mode at a time. Switching installs that mode’s firmware, from the app or from Flash.
Your cartridge backups, kept in your account. Download any as a .sav.
The adapter keeps up to 4 backups until you sync them to the app, and won’t take another until you do. Backing up and restoring a cartridge needs the app and the adapter.
Your Pokémon stored in the cloud — the chips show which games each one can be sent to (send from the Kizuna app).