First of all, please make sure your device is fully charged. Set is overnight to charge and then go thought the device onboarding inside the app.
Are you getting any error messages?
If all goes smooth, please make sure your device has a clear view of the sky and the GPS signal is not being blocked.
Cycle the power off and on, give the device about 10 minutes to try and reconnect.
If the issue persists contact our support team through firstname.lastname@example.org. Please let us know if you are getting any error messages.