Power on your Nintendo 3DS and launch the application from the HOME Menu.
Before installing the Pokémon Ultra Moon Update 12.3 for 3DS World CIA, it's essential to consider the following:
The "World" or Region Free (often designated under CTR-U-A2BA ) update tag means the file contains universal components applicable across multiple base game regions.
Ensures your save data remains fully compatible with external save editors like PKSM or PKHeX without corrupting index numbers. Understanding the "World" Region Designation
For users utilizing custom firmware (CFW), such as Luma3DS, managing the "World" (Region Free) CIA update requires specific steps to avoid common errors: