: Fixed a glitch that prevented Vivillon’s menu image from appearing correctly in the Friend Safari. Evolutions

A "good guide" for depends on whether you are trying to install the update for an emulator or a modded 3DS, or if you are looking for a gameplay walkthrough of the version itself. 1. Update 1.5 Installation Guide

: The update introduced more robust unauthorized data-check functions to detect and prevent "injected" Pokémon or modified save data in competitive play.