

NDEF programming does not apply to the Security Key Series keys. If you're not sure which slot to use, use slot 1.

If the phone does not read anything from the YubiKey/does not make a confirmation noise, try setting the NDEF slot for NFC usage and try these steps again.It can take up to 5 seconds for the two devices to complete the operation. Hold the YubiKey near or against the phone's reader, keeping it still until your phone confirms authentication by vibrating and/or emitting a sound.For example, holding it at a 45 degree angle to the device (see below for an example of using the key with an iPhone). Depending on your phone, you may need to use an unusual orientation/rotation of your YubiKey.If you do not know your phone's NFC reader location, try looking up the phone's manual on the manufacturer website, and/or search online for something like " iphone 7 nfc antenna location".Because the YubiKey performs cryptographic operations, you will likely need to hold the key near your phone for longer than with other NFC tags/devices. Ensure you are holding your key near the NFC reader on your phone.If your phone is in a case, try removing it, in case it is interfering.If possible, try searching for NFC within your Settings app. On Android, NFC can be toggled under Settings, although the exact location of the setting varies.To use NFC on an iPhone, you need an iPhone 7 and newer, running a supported version of iOS.

