There are a few ways you can find the ID:
1- When the blue light is flashing, go to your wifi list of your phone and see the available wifi network. Refresh the list. You will see an available network that has this format SC_XXXXXX (Xs are a combination of letters and numbers). That will the device ID.
2- Use an andriod device. On Andriod devices, this process is automatic and the phone will automatically find the device ID.
3- Scan the QR code. On the other side of the device as well as on the box, there is a small QR code. You can scan that with your phone camera and that will gove you the device ID.
4- If non of them work we would happily replace the device for you, free of charge.