The process is a rite of passage for 3DS CFW owners. It takes five minutes but saves hours of future frustration.
To install a CIA update, your Nintendo 3DS must have , typically Luma3DS , and an installation tool like FBI . Step-by-Step Installation Guide pokemon omega ruby update 14 cia download install
You can verify the update by checking the title ID (Pokémon Omega Ruby update is usually 0004000E0011C500 for USA). Version 1.4 has a specific SHA hash, but sharing that hash would still point to copyrighted data. The process is a rite of passage for 3DS CFW owners