Rumors (unconfirmed, always take with a grain of stardust) suggest that v1966 contains:
The string "01001F5010DFA800" is the unique for the Nintendo Switch game Pokémon Legends: Arceus . The additional identifier
corresponds to the internal version numbering for the game's Version 1.1.1 update, which was released on March 17, 2022 Technical Overview of Update v1.1.1 (v196608)
This specific update was a critical bug-fix patch following the major "Daybreak" content expansion (v1.1.0). Primary Fix
: Addressed a widespread issue where players were unable to obtain the Shiny Charm
from Professor Laventon even after meeting all the necessary requirements. Resolution
: After installing this update, players affected by the bug can simply speak to the Professor in Galaxy Hall to receive the item. Requirement
: This version is required to access the game's online features, such as the Trading Post or the Lost & Found system. Comparison with Version 1.1.0 (Daybreak) Pokemon Legends Arceus -01001F5010DFA800--v1966...
The v1.1.1 update (v196608) is a minor revision compared to the substantial 1.1.0 update that preceded it. Key differences include: UPDATE 1.1.1 Pokemon Legends Arceus & New SHINY Event
To create a new feature (such as a mod or cheat) for Pokémon Legends: Arceus
using the Title ID 01001F5010DFA000, you generally need to modify the game's code or files within an environment like Atmosphère (for Switch) or an emulator like Ryujinx or Yuzu. Common "Features" Created via Cheats
Most custom features are implemented through Atmosphere-style cheat codes (text files). Common community-created features include:
Guaranteed Shinies: Forces every wild encounter to be a Shiny Pokémon.
Pokedex Encounter Spawners: Allows you to spawn any specific Pokémon by looking at its Pokédex entry.
Performance Mods: Features that enable 60 FPS or Resolution improvements. Rumors (unconfirmed, always take with a grain of
Currency/Item Multipliers: Features that provide infinite money or Rare Candies. How to Implement a New Feature
Locate your Build ID: The long string in your query (-01001F5010DFA800--v1966...) contains the Title ID and Build ID required for the game to recognize your additions. Create the Cheat File:
Create a .txt file named exactly after your game's Build ID (e.g., 7222E13ECF6ADB32.txt).
Add your hex-coded feature under a bracketed name, for example:
[Infinite Money] 580F0000 041F0B00 580F1000 00000210 780F0000 00000040 640F0000 00000000 0098967F Use code with caution. Copied to clipboard Directory Path:
Switch: Place the file in sdcard:/atmosphere/contents/01001F5010DFA000/cheats/.
Emulator: Right-click the game in your library and select Open Mod Directory to place your files. Resolution : After installing this update, players affected
For a pre-made collection of these features, you can check repositories like ryzendew's Switch-Mods on GitHub.
The Pokémon community is vast and active. If you're experiencing a specific issue, checking online forums like Reddit's r/pokemon or the Pokémon Legends: Arceus subreddit might yield solutions or workarounds from other players who have encountered similar problems.
The modding scene for Legends: Arceus exploded after v1.1.0, as modders knew no further updates would break compatibility.
For years, the Pokédex was little more than a checklist of names. In Legends: Arceus, it becomes a research journal. You don’t just catch a Pokémon to register it; you have to study it. You need to see it use specific moves, defeat it a certain number of times, or observe it sleeping.
This gives purpose to the grind. Every interaction counts toward your rank as a member of the Galaxy Team. It forces the player to engage with Pokémon they would normally ignore, uncovering the ecology of Hisui in a way that makes the world feel alive. It recontextualizes the Pokémon Trainer not as a gladiator, but as a scientist—which is arguably closer to the series' core ethos.
Solution: Update PKHeX to the latest nightly build. As of mid-2025, PKHeX fully supports v1.1.0. If you see this, your PKHeX is outdated.
