Default [Q] past update to xxugng3 nfc problem

Hope someone can help
Past uptade s3 to xxugng3 4.3 i have the problem, if the headset is via bluetooth connected a nd i turn Bluetooth off, nfc activate from its own. The same, if i turn my headset off and the phone disconnected bluetooth pairing, nfc started from its own.
Its a bug, i think, not normal. Did somebody know how to fix this