While the HOME screen is displayed, pressing the key will display the "Get Started" screen, which includes the information below.

QR Code for accessing the "Get Started" webpage of the Worldwide Education Service (https://wes.casio.com/calc/cw/)
The Get Started webpage gives you access to the User’s Guide and other related information to help you get started with your calculator.

Calculator ID number (24-character string)

Press to return to the HOME screen.