- Make sure that the security key is folded open and you touch the top of the phone with it according to the instructions in accordance with.
- Make sure that the service you are using is ready to establish an NFC connection
- The service may require that you have registered the PIN code security key in connection with.

Having two FIDO keys is recommended. You can register more than one key for one user, so if one key fails, you can use the other.

- Yes. If your device has a Bluetooth connection and the service you use supports the key's Bluetooth feature, you can take advantage of this when logging in.
- MacOS does not currently support the Bluetooth feature of FIDO2 security keys, so you cannot use the Bluetooth feature with these devices.

The key can only be used for identification on the phone, but it must be taken to use and register on the computer.