I tried to claim the device from Claim Device but nothing happens when I enter the device ID and click on “Claim Garadget”, I see a 404 error to https://api.particle.io/v1/devices in the JavaScript console when trying to submit the form.
The Garadget should be online (LED slow pulsing cyan). If there are any letters in the ID, try them as lowercase. If none of that work, please reach out through the support form on the website providing the device ID.