So I have one of these questions. I looked in the options under display but I didn't see an option. Is there an option wallet? It is plugged into the USB plug into the power supply. To set the screen to go off while it's scanning because it will go off if isn't plugged in but while scanning using the battery. Is there a way to do this? While it's plugged in as the same way as if it's running off the battery. I don't see that option in display options unless I'm missing something.