Shift OBD Complete Download link :
Shift OBD Complete on the App Store (apple.com)
Step1:
Press the vLinker FS Bluetooth button, then open your phone's Bluetooth Settings, search for and tap "vLinker FS XXXXX".
Step2:
A random pairing code will be generated when pairing vLinker FS Bluetooth, click "Pair".
Step3:
Successfully connected to the Bluetooth device "vLinker FS XXXXX".
Step4:
Click on the Settings button in the bottom left corner.
Step5:
Click on "Interface".
Step6:
Select "Vgate vLinker FS".
Step7:
After selecting the correct device, return to the home page.
Step8:
Wait for the app to connect automatically.