Unfixed-info.bin High Quality
Amiibo data is encrypted to prevent unauthorized duplication. To read or write this data to blank NFC tags (specifically tags), software needs two specific "key" files: unfixed-info.bin
Whether configuring a backup archive on an Android phone, an iPhone, or a dedicated computer, applications will display an error message stating unfixed-info or locked-secret missing until the corresponding keys are manually provided. Configuring TagMo (Android)
Technically, is a 160-byte binary file containing the cryptographic keys needed to handle the "unfixed" or "unlocked" data sections of an Amiibo.
: When writing to a blank NTAG215 tag, the app uses this key to re-encrypt the data so a Nintendo console will recognize it as an official product. How to Use unfixed-info.bin unfixed-info.bin
For most people, the goal is to get their Android phone to recognize the file. Here is the standard workflow:
For IT professionals, data recovery specialists, and curious power users, unfixed-info.bin has become a topic of quiet intrigue. This article unpacks everything you need to know about this mysterious file—its origin, its function, security risks, and exactly what to do if you find it on your machine.
When setting up TagMo to create custom cards, you will receive an error if these keys are missing. Amiibo data is encrypted to prevent unauthorized duplication
For most Amiibo writing applications to function, these keys must be "imported" into the software. Common tools that require this file include:
If you have a NAND backup:
Nintendo Amiibos use encrypted NFC data. To interact with this data using third-party software, the app must "unlock" the files using specific retail keys. While the software itself is legal, these proprietary key files are copyrighted by Nintendo and are therefore not bundled with the apps. It is almost always used alongside another file called locked-secret.bin Alternative Names: : When writing to a blank NTAG215 tag,
If you have ever looked into backing up your Amiibo collection or duplicating figures using NTAG215 NFC tags, you have likely encountered the term . This tiny but critical file is one half of the proprietary encryption key pair required by software like TagMo to read, decrypt, and write Amiibo data.
The filenames of the key files (unfixed vs. locked) directly correspond to the type of data they are meant to secure. The unfixed-info.bin file handles the variable information.
Handles the decryption of the "core" identity of the figurine.
Several theories have emerged regarding the potential functions of unfixed-info.bin . Some speculate that it serves as a configuration file, storing critical data necessary for the operation of a device or application. Others propose that it might be a data exchange file, used to transfer information between systems or components. Its presence in firmware and software packages has also led to speculation about its role in device calibration, software activation, or as a key component in digital rights management (DRM) systems.
It sounds like a rejected cyberpunk movie title. Or a warning. Unfixed information? As opposed to… fixed? Is something broken? Is it a log of your PC’s deepest regrets?
