Pokemon X Update 15 Cia Link -

The safest way to update Pokémon X is through the Nintendo eShop on your console, provided the service is still active in your region.

For users playing on original Nintendo 3DS hardware with custom firmware (CFW) like Luma3DS, updates are typically installed via CIA files. A CIA (CTR Importable Archive) is the standard format for installing games and patches on a modified console. pokemon x update 15 cia link

Make sure you have at least 500 blocks of free space on your SD card. The safest way to update Pokémon X is