User's Manual

2.3.3Performance
The software is easy to operate and reliable, guarantees the authenticity and security of
information.
3.VCI Connection
You can connect the VCI device with M400 through the following steps:
1. Insert the VCI tightly into the OBD port.
2. Then the M400 will automatically scan and recognize the VCI device. At this time, the VCI icon on
the top right turns blue, which means the VCI is successfully connected. If the VCI icon still shows red, it
means the connection is not successful.
3. If the M400 cannot automatically connect to your VCI device, or the device fails to connect, please
manually click the VCI icon on the top right to reconnect, or check whether the VCI is well connected to
the car's OBD port.