With this guide, you can finally enjoy the definitive version of Alola’s final adventure—complete with stable performance, all event data, and region-free convenience. Whether you are a completionist hunting Shiny Necrozma or a modder preparing a difficulty hack, Update 1.2 is non-negotiable.

Create a folder named cias on the root of your SD card (if it doesn't already exist). Copy the Pokemon_Ultra_Sun_Update_1.2_WORLD.cia file into this folder.

What are you currently facing, if any?

: Addressed a bug where the move Ion Deluge (which changes Normal-type moves to Electric-type) would occasionally fail to function as intended.

Because of the eShop closure, the has grown – but downloading CIA from unlicensed sources remains illegal under copyright law.

: Resolved an issue where the move Ion Deluge would no longer function correctly.

If your base game is a global/WORLD version, your update CIA also be the global/WORLD version. Installing a strict USA update over a EUR base game will result in the 3DS interface failing to recognize the patch, leaving your game at version 1.0. What is a CIA File?

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is a critical software patch released by Nintendo and Game Freak for the Nintendo 3DS, designed to fix several game-breaking glitches and battle bugs that persisted after the title's launch [1, 2].

Reinsert the SD card into your 3DS and power the console on. Launch the application from your home menu. Navigate to SD -> cias . Highlight the Update 1.2 CIA file and press A .

The update is a critical maintenance patch for Nintendo 3DS owners, primarily aimed at fixing game-breaking glitches that occurred during competitive play. This "World" or "Region Free" update ensures that your game is compatible with online features regardless of your local region. Key Patch Notes for Version 1.2

For the vast majority of users searching for this term, installation via a CIA file is the goal. This process requires a 3DS with custom firmware (CFW), such as Luma3DS. The following is for informational and educational purposes. You should only install files from trusted sources and always back up your system's NAND and save data before proceeding.