You cannot use the Player Search System (PSS), Wonder Trade, or Global Trade Station (GTS) without this version. Bug Fixes:
Alternatively, if you're referring to a CIA (CTR Importable Archive) file for a 3DS game update, these are typically used for installing games or updates on a hacked or homebrew-enabled Nintendo 3DS console.
: A well-known repository for 3DS content, including games, updates, and DLC. You can find the Pokémon Omega Ruby Update 1.4 listed under the "Updates" section. Internet Archive 3DS-CIAs directory