A decrypted version of the 1.5 update is considered the ideal file for anyone looking to modify the game. Because the data is unlocked, modders can easily access and change its internal files, enabling all sorts of community-created content. Here are the most common use cases:

Decrypted updates (CIA files) have had the encryption removed. This makes them easier to install on modified 3DS consoles, as they do not require the same level of signature checking during installation.

Using a pre-decrypted Pokémon X ROM and a decrypted 1.5 update file bypasses this barrier. It allows the emulator to instantly boot the game, load textures, and apply the update without requiring a hacked 3DS console to dump system titles. How to Install the 1.5 Update on Citra Emulator

Emulators like Citra cannot natively bypass 3DS hardware encryption without complex system keys. Therefore, a is mandatory for loading Pokémon X directly into an emulator on Windows, macOS, Linux, or Android. The Importance of the EUR/USA Region Compatibility