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 on the button in the top left corner.
Step2: Click on:"Settings".
Step3: Click on "Connection type" to select the connection method.
Step4: Select "Vgate" for connection method.
Step5: Select the correct device and return to the home page.