While Pokémon X is often played on region-free emulators, the update file itself must match the base game's region (USA or EUR) to function correctly. Pokémon X & Y - Patches & Updates - Serebii
: Resolving the infamous "Lumiose City bug," where saving in certain areas could permanently corrupt a player's save file. pokemon x update 15 decrypted 3ds eur usa top
No direct download link is provided here for copyright reasons. Search for: Pokemon X update v1.5 decrypted CIA on trusted 3DS/emulation sites or archives. While Pokémon X is often played on region-free