1. Check if the 4G SIM card has sufficient data.
On the homepage, click 4G refill > 4G Data Store, and check the data status.
2. There may be signal interference. Try moving the device to a position with strong 4G signal.
3. Ensure that the device is powered on normally and restart it.
4. Ensure that the phone has network.
5. If the 4G device fails to bind to the App, pay attention to the following voice prompts when it is turned on.
SIM card detection success
If the device doesn’t broadcast “SIM card detection success”, check if the SIM card is inserted and installed properly.
Network connection success
If the device doesn’t broadcast “network connection success”, please provide customer support with SIM card number for checking. They will refill data, or refresh the card.
Please use the App to add device
If there is no such voice prompt, please reset the device.
If there is such a voice prompt but the device still cannot be added to the App. It may be caused by the usage of a non matching card. Please contact customer support to unbind it.
After the above checks, if the device still cannot be added successfully; Reset the device and add it again.