Tap on the NFC tag icon to enable it. All you have to do is take your iPhone near to the tag for your device to read it. This will activate NFC. If you can't find the icon, you can add NFC via the Settings app. To add an NFC tag .Thanks for contacting Apple Support Communities! We understand that you'd like to disable NFC on your iPhone. The iOS doesn't include a feature which would allow NFC technology to be disabled. If you're only seeing this alert while you're at the gym, it appears .