Use FBI to delete the incorrect update under "Titles", then install the matching region patch. Out of Memory Error

The 1.2 update patch for Pokémon Ultra Sun and Ultra Moon Nintendo Support, 2018 offers significant improvements over the initial 1.0 version. Failing to update can result in:

Pokémon Ultra Sun & Ultra Moon - Patches & Updates - Serebii

Several scenes, particularly during battles or cutscenes, were prone to locking the console.

: Launch the game; you should see "v1.2" on the title screen. Key Details for v1.2 Version Number : 1.2. Update Size : Approximately 66.87 MiB .

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The v1.2 update brings stability, ensuring smooth gameplay, especially when playing on older hardware. Prerequisites for Installing the 1.2 CIA Update Before beginning, ensure you have the following:

Select (this saves space by removing the installer after the update is applied).

: Select Install and delete CIA . Deleting the installer after installation saves space on your SD card, as the update data is copied to the system's internal management.

Complete Guide to Installing the Pokémon Ultra Sun v1.2 Update CIA

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.