When the voice guide says” No SIM card was found, sync failed.” , you can check the problems from the aspects as listed below.
- Check if the SIM card was installed correctly. The notch should face the down right corner.
- SIM card consumes much more power to sync the data than the WiFi modes. Please try again with USB power supply (5V/2A).
- Please make sure that the SIM card clicked into the slot.
Please feel free to contact us for any questions. The support email is: [email protected]