My first question is, where did it come from? What did it come out of?
There are a lot of NFC controllers in products that are actually dynamic by nature meaning they are communicating with some other processor internally within the product over I2C or some mother data bus, and that processor is effectively dynamically setting data for an external smartphone to read. A typical application would be Bluetooth pairing for smart speakers etc.
Basically with these types of applications, disconnecting the module from the processor will render it useless because the NFC controller is not being given any instructions on what to do when scanned.