Please ensure that your GPS tracker is powered on and properly charged. If the device does not have a power button, simply make sure the device has been recently charged. Please ensure that your device has a valid subscription or remaining position credits; otherwise, your device will not update on the app/control panel. If you have not used your GPS tracker for at least 3 months, the internal SIM card of your device may have been temporarily suspended. If you have performed the above checks and your device still does not update, please contact us by email or phone, and we will remotely reactivate the SIM card of your device.