Pokémon Omega Ruby to version 1.4, you typically need to install an update file (CIA format for 3DS or CXI/CCI for Citra) alongside your base game. Version 1.4 is essential for accessing online features like Wonder Trade, the Global Trade Station (GTS), and redeeming Mystery Gifts. Nintendo Support Installation Methods For Nintendo 3DS (Custom Firmware/FBI)
Released by Nintendo on April 22, 2015, the update patch 1.4 for Pokémon Omega Ruby and Pokémon Alpha Sapphire is a mandatory update. It primarily fixes various bugs to provide a smoother gaming experience and includes all changes from previous patches (versions 1.1, 1.2, and 1.3). pokemon omega ruby update 14 cia download install
Navigate to SD -> cias (or wherever you saved the file). Pokémon Omega Ruby to version 1