The update requires approximately of space on your Nintendo 3DS SD card. You can download it through several official methods:
As of , Nintendo released Version 1.4 for Pokémon Omega Ruby. This update is mandatory for all players wishing to use the game's various internet-connected features. Key Features of Version 1.4 Pokemon Omega Ruby Version 1.4 Download
For players using emulators like Citra or Lime3DS , the process is slightly different: The update requires approximately of space on your