1. Make sure that the camera is turned on and the power switch is on

2. Ensure that the camera battery is charged, and the APP will display the battery power (if it is a red light power icon, it means there is no power). Or plug in the charger for charging and solar charging

3. Check whether the 4G traffic of the camera is insufficient. Open the app to enter the traffic recharge page to check whether the traffic has been used up. If the red and blue indicator lights of the camera flash alternately, it means that the camera traffic is insufficient and the payment is overdue.

4. The SIM card of the 4G camera cannot be changed at will. The device will be locked after replacement and cannot be used online. Please contact the customer service for unbinding before use.

5. The 4G signal at the installation location is not good, please put the camera at the position with strong signal as far as possible, for example, there is no building shelter outdoors. Or turn on the phone at the camera installation location to check whether the 4G signal strength of the phone is full, to ensure that the 4G signal strength at the installation location is strong.

6. The sim card is not inserted or damaged. When the camera is turned on and the red and blue indicator lights alternately flash slowly, the sim card is not inserted or the sim card is damaged.

7. If the above troubleshooting is normal, please restart the camera