Hello guys, Ive followed this article ( Customer Display with Advertisement ) about creating a second display for customers. But ive tried it about 100 times (im newbie) and no it shows me only a Test Screen, screen is not updating and nothing happens. Can anybody create a video tutorial about this? Or help me please.
Help us help you. Show all your settings that you have done. The 304 code indicates that nothing on the page has changed, meaning probably your Print is not happening for some reason.