Topdon Artidiag 900 Bt Ad900bt Bidirectional Diagnostic Tool Supports ECU Coding 28 Service Functions 2 Years Free Update

Check if the connection with the vehicle diagnostic socket is solid, or check if the ignition switch is on, or if the tool supports the car. Check whether the version of the scanner and VCI is the latest (if not, try again after updating), and check what indicator is on the VCI (refer to the indicator description in the user manual).

This may be caused by a loose diagnostic VCI dongle. Please unplug the VCI dongle. Please make sure the connection is stable and solid.

Please confirm the following cases: (1) Whether diagnostic VCI dongle is correctly connected. (2) Whether the ignition switch is ON. (3) Check whether the version of the scanner and VCI is the latest (if not, try again after updating), and check what indicator is on the VCI (refer to the indicator description in the user manual). Or, send your vehicle's year, make, model, VIN number, and Device's SN to us using the Feedback feature for timely technical assistance.

This is normal. It is commonly caused by electromagnetic interference.

(1) Power on the tool and ensure a stable Internet connection. (2) Go to 'Settings'->'App Update', tap 'OTA' and then tap 'Check Version' to enter the system upgrade interface. (3) Complete the process by following the instructions on the screen step by step. It may take a few minutes depending on the status of your network. After the upgrade is finished, the tool will automatically restart and display the main interface.