The Brose all-round display is quite intuitive. To turn the bike on, press and hold the power button for 2 seconds, then release it. If you want to explore more functionality, please review the manual here: Brose Allround Display

• At times you may want to reset the displays to default when troubleshooting.
• Power the bike on, holding the power button for a few seconds, then releasing. 
• Press and hold the top left button to enter the settings. 
• Scroll to and Select "System" by pressing the top left button. 
• Select Default Settings.
• Pressing the top left button resets all settings to defaults.
• The left top button will cycle through different info in the display. You can also hold it to access settings
• The rocker button cycles up or down through the power levels: Off, Eco, Tour, Sport, Boost.

There are multiple views. The diagram below shows some of the basics. 

• A red triangle with "!" indicates a fault or error. Please review the troubleshooting steps outlined here.