This patch is strictly required to access the Global Trade System (GTS), Wonder Trade, and Battle Spot.

Pokémon Ultra Sun to version 1.2 using a file, you will primarily use the

: The CIA installer will process the file and install Update 12 for Pokémon Ultra Sun.

. (Selecting "delete" saves space by removing the installer file after the update is applied). Wait for the "Install finished" message and press to confirm.

You are now ready to install the update.

To install on a console, your 3DS must already have custom firmware (CFW) such as .