ViaBecs OBD2 Scanner Bluetooth 5.1 Adapter for iPhone & Android, OBDII blue
Publisher: ViaBecs. Open a compatible OBD app first, then select Bluetooth LE / Bluetooth 4.0 / Bluetooth device connection inside the app. If your phone connects to the adapter but the app does not show vehicle data, make sure the ignition is ON or the engine is running, the correct connection type is selected, and the app shows ECU connected.