This part covers some of the common issues faced in the prototype

I can't click on some icons

Icons that cannot be clicked on will appear faded. Since this is a prototype aimed at educational use, not all functionalities have been fully fleshed out.
Examples of faded icons or menu labels

I can't click on the back or home button

The prototype scales according to different screen sizes and by default scales the touch areas around a specific icon. If you are on a device with a screen smaller than 15inches, try positioning the round cursor in the middle of the icon you want to click

The testing mode does not give me a success screen

Make sure your inputs match the required criteria for the given scenario. You can access the scenario anytime by going to the home screen in the testing mode and clicking on the Instructions button. You can also get an overview of your inputs when you click on the Start Scan button