Insert your 3DS SD card into your computer. Copy the update .cia file into a folder named cias .
For users preferring a "portable" structure without installing via FBI: pokemon ultra sun update 12 3ds world cia portable
: Users can download the update in .cia format from trusted repositories like hShop to ensure the game remains compatible with online servers. Insert your 3DS SD card into your computer
Copy the PokГ©mon Ultra Sun Update 1.2 CIA file into the cias folder. Safely eject the SD card and insert it back into your 3DS. pokemon ultra sun update 12 3ds world cia portable