While CFW is region-free, it is best to match the CIA region with your save data to avoid corruption. How to Verify Your Version
If you need help with the next steps, I can provide a guide on: Using to install the file How to back up your saves with Checkpoint The difference between Region Free and Global versions pokemon ultra sun v12 cia exclusive
Improved the connection stability for the Global Link and Battle Spot. While CFW is region-free, it is best to
Pokémon Ultra Sun, released alongside Ultra Moon, is the definitive version of the Alola region journey. The v1.2 update is the final official patch released by Game Freak to ensure the game runs smoothly. Key Fixes in the v1.2 Update The v1
Resolved an issue where the game would occasionally freeze when using specific moves like Wide Guard.
The base game is roughly 3.6GB. Ensure your SD card has at least 4GB of free space.