RaceChrono Pro download link:RaceChrono Pro - 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 the Settings button in the upper right corner.
Step5:
Click on "Add OBD-II reader"
Step6:
Click on "Vgate vLinker/iCar BLE/BT4.0"
Step7:
Select OBD-II reader "vLinker FD-Android".
Step8:
Return to home page after selecting OBD II device.
Step9:
Click on "START"
Step10:
Connected successfully.