NFC not working

[LewLew101]

My NFC has been playing up the past week and been greyed out stopping me paying with my phone. Even after restarting my phone it does nothing. Any suggestions 

[Robin999]

Can you do a diagnostic on it and post the result. In the members app, tap on support, tap on diagnostics, tap on NFC

[LewLew101]

I ran the test the other day and said all was normal but now the option to run a test on NFC isn't there at all.
Also if I try to click on the settings for NFC and contactless payments it closes the settings app

[Robin999]

Try wiping your cache partition. Plug into a working PC/Laptop or other working device.

https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/

If that doesn't help then consider full factory reset.