EOBD-Facile-car diagnostic Download link: EOBD Facile: OBD 2 Car Scanner - Google Play 

Step1:
Open your phone's Bluetooth Settings, search for and tap "vLinker FD-Android".





Step2:
A request pairing prompt will be generated when pairing, enter the pairing code "1234" and click "OK".





Step3:
Successfully paired to the Bluetooth device "vLinker FD-Android".





Step4:
Open the app and click on "Settings".





Step5：
Click on:"Interface".





Step6:
Select: "ELM327 Bluetooth".





Step7:
After selecting the correct connection, go back to the home page. Click on "Connection".





Step8:
Select the paired device "vLinker FD".





Step9:
Wait for the app to connect to the vLinker FD+.





Step10:
Select your car model.





Step11:
Wait for the app to connect to the car ECU.





Step12:
Connected successfully.