The official Pokémon X Update 1.5 is the final essential patch released by Game Freak, designed to resolve major gameplay bugs and improve online compatibility across both European (EUR) and North American (USA) versions of the game. For users running emulators like Citra on PC or mobile, applying the decrypted version of this update is required to ensure smooth performance and prevent critical save-file corruption. 🛠️ What is the Pokémon X Update 1.5?
Standard Nintendo 3DS files are encrypted to work only on official hardware. A "decrypted" version has had this security layer removed so that emulators can read the game's data. 3DS / EUR / USA: These indicate the regional compatibility
A message in plain English resolved itself in stark, courier-font letters: DECRYPTION COMPLETE. AUTHENTICITY VERIFIED: EUR / USA — 2021. Then, beneath that, smaller: UNLOCKED MEMORY: PROTOCOL XV.
Whether you are replaying Pokémon X on a Steam Deck via Citra, or loading it onto a modded "New 3DS XL", the v1.5 decrypted update is essential. As of 2025, no further updates have been discovered, making this the definitive way to play.
- All 718 Pokémon catchable
- Gym leaders’ teams reworked for level 60-80 by E4
- Mega stones available before post-game
- Removed version-exclusive trades
- Increased shiny rate to 1/512
- Added Gen 7 moves & abilities backported to XY engine (via code.bin hack)
Review: Pokémon X – Update v1.5 (Decrypted, EUR/USA, 3DS – 2021 Scene Release)
Introduction: The Late-Life Patch
Enhanced Anti-Cheat: The update increased detection for unauthorized data manipulation and "cheating" programs like Instacheck or Battle Analyzer, which players previously used to intercept online traffic to see an opponent’s team data or move choices.
Addressed internet communication issues that caused frequent disconnects during Random Matchups and Online Competitions.
Part 7: Why EUR and USA Updates Aren’t Interchangeable
A common mistake in 2021 was trying to install a USA decrypted update on a EUR base ROM. This would result in: