Either the NFC was touched incorrectly or it is unsupported. Please ensure the NFC is supported and that the NFC tag is touched firmly enough to read it.
The NFC is tapped incorrectly, and the information cannot be read. Try again, making sure to tap the NFC tag firmly with the smart device.
An NFC tag of an unsupported specification (other than Type-B) was read. Use the NFC tag that is provided with the machine.
An NFC tag initialized incorrectly was read. Use the NFC tag that is provided with the machine.