NFC is not working

[Shuvocasanova]

I have a Sony Z3. It was quite good but a month ago i witnessed a problem with nfc. I suddenly touched one touch tethering option, from that moment the NFC is turning of and on itself and my phone's settings hangs. Whenever I restart my phone this issue rolls again. I flashed firmware but no result. Please help me, it's draining my battery a lot and getting hot

[Uliwooly]

@Shuvocasanova1

If you have repaired the phone with XC then it could be a hardware issue but do repair the phone with XC again, just in case then boot in >>> safe mode and report back