Pokemon Ultra Sun Update 12 Cia Install Info

For users planning to run ROM hacks (like Pokémon Supernova Sun , Penumbra Moon , or Photonic Sun ), ensure:

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: Acquire the update CIA from a different source. The “bad .cia” problem is well-documented. Always verify file integrity by cross-referencing file sizes with known-good values. For users planning to run ROM hacks (like

To install a CIA update file, your Nintendo 3DS must already be running custom firmware. Ensure you have the following setup completed: Can’t copy the link right now

Ensure that the region of the update CIA matches the region of your base Pokémon Ultra Sun game. Mixing regions (such as applying a European update to a North American game) prevents the patch from applying correctly.