If you are interested in about Pokémon X update 1.5 (official patch notes, bug fixes, changes to the Lumiose City save glitch, etc.), I can write a clean, factual report for you.
When you download an update directly from the eShop on a stock 3DS, the file is . It uses a console-unique "title key" to lock the data. This means you cannot: Pokemon X- Update 1.5 -Decrypted- 3DS -EUR USA-...