If you cannot use the official Nintendo eShop (now mostly closed for 3DS), you can use CIA files to manually patch your game. Method 1: Installing via FBI (Manual CIA)
Fixes an issue where certain captions for Trainer PR Videos in Lumiose City remained locked incorrectly. pokemon x update 15 cia top
Resolves a bug where some Pokémon failed to learn new moves after evolving specifically through Wonder Trade. If you cannot use the official Nintendo eShop
Released on April 22, 2015, Version 1.5 serves primarily as a stability and security patch rather than a content expansion. pokemon x update 15 cia top
Enhances internet communication protocols to reduce random disconnects during online matchups.
Obtain the "Pokémon X Update v1.5" CIA from a trusted source like hShop .