Go to File > Install CIA and select your Update 1.5 file.

Add your decrypted .3ds file to the emulator library.

This update is mandatory for all players wishing to use internet features, including the GTS and Wonder Trade.

Avoid updating via the eShop if you are using specific older ROM-injection methods, as it may break compatibility.

Resolved bugs causing disconnects during Random Matchups and Online Competitions.

Are you setting this up for a or are you planning to install a specific ROM hack like Eternal X or Ancestral X? How To Play Ancestral X

The base game requires approximately 1.7 GB of space.