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 "OBD Auto Doctor" and click "Extras".
Step2: Click on "Connectivity".
Step3: Select "Bluetooth" as the connection type.
Step4: Click "Device".
Step5: Select "Vgate BLE" for the connection device.
Step6: After selecting the correct device, return to the home page.
Step7: Click the Connect button in the upper right corner.
Step8: Wait for the app to connect to the vehicle.