NOTE: Just enable Bluetooth settings on your iOS device. DO NOT Need to connect Bluetooth Name on iOS device. Then connect the Bluetooth device name in the OBD app setting.
Step1: Open the app and click: "Connect".
Step2: Choose your car model.
Step3: Select the OBD adapter connection method "Bluetooth 4.0+ LE".
Step4: Click on "OK".
Step5: Waiting for the app to detect nearby devices.