@kald ZE554KL is a product that has been on the market for some time, and in the past year or two, we have not provided any further updates. So, based on the situation you've described, there's a higher likelihood that the NFC hardware might be malfunctioning. I suggest you open the Calculator app and enter . 1 2 3 4 5 + = in sequence to access the test menu, then proceed to test the NFC item. If the test passes successfully, it indicates that the function is working properly. On the contrary, if it fails, then the NFC itself might be faulty. Sorry for any inconvenience it may be caused.