Download link : App Store 上的“Harry's LapTimer GrandPrix” (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:
Open the app and click on "Administration".





Step5:
Click on "Sensor List".





Step6:
The application will automatically scan for and connect to the vLinker FS adapter, while OBD data will be displayed on the engine or GPS view (bottom) accordingly.