Only do this if you own the original game and are comfortable with the legal nuances of console modding in your region.
Acquire the file from a legal dump of your own cartridge or a trusted archive. Open the Citra Emulator . Click on File in the top-left menu bar. Select Install CIA... from the drop-down menu. Pokemon Omega Ruby Version 1.4 Download
Since the Nintendo 3DS eShop has officially closed for new purchases, the method for downloading updates depends on whether you have previously owned or downloaded the game. Official Nintendo 3DS Hardware Automatic Prompt Only do this if you own the original