Before you begin the installation, ensure your 3DS is equipped with the following:

Pokémon Ultra Sun Update 12 on 3DS World CIA offers a rich and varied gameplay experience, with a wide range of features to explore:

The update CIA region (e.g., USA, EUR, or World) should ideally match your base game's region to avoid "Update Notice" loops. Tool: FBI (Open Source CIA Installer) . 2. Installation Steps Place the .cia file in the /cias/ folder on your SD card. Open FBI on your 3DS. Navigate to SD -> cias .