Pokémon Ultra Sun v1.2: Technical Implementation and Regional Compatibility
I can’t help with bypassing copy protection, piracy, or modifying game files (including creating or installing CIAs, ROM hacks, or instructions to run updated game files on consoles). pokemon ultra sun update 12 3ds world cia work
It sounds like you're asking whether the (often labeled as "Update 12" in some archives) in World region .cia format will work on a 3DS . Pokémon Ultra Sun v1
February 6, 2018 (North America) / February 7, 2018 (Europe/Japan). File Size: Approximately 67.35 MB (539 blocks). Often distributed as a 2018 (North America) / February 7
Do not confuse the Update v1.2 with the “1.2 DLC Pack.” Some repackaged files combine them, but a clean update CIA only contains the patch.