Skylanders chips are robust, but they fail. Heat, age, or physical damage can corrupt the data. However, because the UID (Unique Identifier) is burned into read-only memory, you cannot simply copy a friend’s Spyro. But you can write a clean Bin File from a working figure onto a blank NTAG203 sticker, then transplant it into the broken toy’s base. Your original statue works again.
At their core, these files (often ending in .bin ) are digital "dumps" of the NFC technology used in most Skylanders figures. They represent the exact binary data the Portal of Power reads to transport a character into the game. Skylanders Bin Files
Activision knew that NFC chips could be cloned. Their countermeasures included: Skylanders chips are robust, but they fail