Install app Qrenteerings or QREvented from Google Play (for Android device) or Qrenteerings from Appstore (for iOS device)

Start the app

In app Settings set "Server URL" to

Select Internet event

Enter course code: sample21

Enter your code as "SExxxxxxxx", where "xxxxxxxx" usually is participant's phone number, but for sample event you can use any digits (0-9).

Press Register and you will be ready to enter/scan QR codes for controls on course.