This guide was last checked for accuracy in April 2026. 3DS online services for Pokémon are partially active, but always check current server status on Serebii.net.
If you are using a modified 3DS and cannot use the Official Nintendo eShop , you can install the update manually: How to Update Pokémon Ultra Sun and Pokémon Ultra Moon
Pokémon Ultra Moon Version 1.2 Update Overview The Version 1.2 update for Pokémon Ultra Moon (and its sister title, Pokémon Ultra Sun pokemon ultra moon update 12 3ds world cia
Press , then select Install and Delete CIA to conserve system block space.
The is the definitive final patch required by Nintendo 3DS homebrew users to ensure complete game stability and full access to modern archival features. Released officially by Game Freak to resolve critical gameplay-freezing bugs, the 1.2 update remains a mandatory installation file for anyone playing the game via modern custom firmware (CFW) platforms. This guide was last checked for accuracy in April 2026
Resolved a critical bug where using the moves Curse , Forest's Curse , Power Trick , or String Shot during Live Competitions or QR Code events could cause the game to freeze.
Look closely at the bottom-right corner of the . It should explicitly display Ver. 1.2 . Troubleshooting Common Installation Errors Error: Luma3DS Exception Crash on Boot The is the definitive final patch required by
: Released in 2017, Pokémon Ultra Moon is an enhanced version of Pokémon Moon, one of the titles in the Pokémon series for the Nintendo 3DS.
Fixes a specific bug related to the move Curse when used in Online Competitions, which previously disconnected players or forced draw results.
If you receive a prompt indicating an update is missing even after a successful installation, your base game installation likely has a . Bad base game dumps constructed from generic .3ds ROMs often resort to a default 0.0.0 version signature. If this happens, your custom firmware reads the game as completely unpatched. To solve this, always ensure your base game and update files are sourced from matching regional IDs. System Crashes and Arm11 Errors