To understand unfixed-info.bin , you first have to understand how an Amiibo is structured. Every Amiibo contains a small NFC chip (NTAG215) with encrypted data. This data is split into two main conceptual parts:
Because it is a raw binary file, double-clicking it will not work. You need specialized tools depending on your goal. 1. Hex Editors
If your application refuses to scan or write tags, it usually means the files are improperly named or placed in the wrong directory. Ensure that:
AMD Adrenalin has a unique update mechanism. When you install or update your graphics drivers, the software performs a multi-phase integrity check: unfixed-info.bin
If you are using devices like the Flipper Zero or specialized Android apps to emulate a figure, these keys unlock the ability to process the character's information correctly. 📂 The Legal and Safety Landscape
: Contains writable information that changes depending on player interaction, such as the custom Amiibo nickname, the owner’s Mii data, game progress, and character statistics (e.g., training data in Super Smash Bros. ).
You cannot stop AMD from writing this file without breaking driver functionality. However, if you simply hate seeing it, you have two options: To understand unfixed-info
One of the most common issues users encounter with unfixed-info.bin is the "Key file signature does not match" error. This error is almost always a result of one of the following:
: It is almost always used in tandem with locked-secret.bin . Together, these two files contain the retail keys necessary for standard Amiibo operations.
If growth continues, roll back to a previous driver version (e.g., 23.12.1 vs. 24.3.1). You need specialized tools depending on your goal
For developers and security researchers, here is a real-world hex dump analysis from a confirmed legitimate unfixed-info.bin generated by Android Studio (version 2023.1):
Amiibo data is encrypted by Nintendo to prevent unauthorized duplication. Programs like TagMo use these bin files as a digital "keyring" to unlock the raw data within an Amiibo backup file.
In almost all NFC emulation scenarios, unfixed-info.bin does not work alone. It is paired with another file: .
This tool, used for editing Amiibo data for Super Smash Bros. Ultimate , supports using unfixed-info.bin and locked-secret.bin for encryption and decryption operations. You can place these key files in the resources folder of the application.
Again, the file is a symptom of the update process, not a disease.
