Nothing happens after inserting the product into the vehicle's USB port. How can I resolve this?

1. Observe how the indicator light lights up: when power is connected, it stays solid red; when the vehicle communicates successfully, it blinks blue; when the phone connects successfully, it stays solid blue.

2. Check whether the phone can find the device's Bluetooth and Wi-Fi.

3. Insert the device into another USB port and observe whether the indicator light lights up.

4. If the device light does not light up, contact customer service to replace the device.