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: Click the "Settings" button in the top right corner.
Step2: Click on "Adapter OBDII ELM327".
Step3: Select "Bluetooth LE(4.0+)" as the connection type.
Step4: Click on "Device name"
Step5: Select "IOS-Vlink".
Step6: After selecting the correct device, return to the home page.
Step7: Click on "CONNECT".
Step8: Wait for the app to connect to the vehicle.
Step9: Connection successful
Step10: If the app communicates successfully with the car, you can open the function you want to select.