Hello everyone,
I am using the MFRC522 reader to read RFID cards and perform a block decrement operation. Recently, I purchased some readers from online shops that turned out to be cloned versions. When I perform the decrement operation, it fails — the command returns a timeout error.
After that, when I read the same block (configured as a value block through the access bits), I find that the entire block data is corrupted — all 16 bytes are 0xFF.
Could a cloned RFID reader be the reason for this corruption of the value block?
