What’s the difference between managing my Screen ID and managing my Device?

Your Screen ID lets you manage what content is displayed when using it on a HootBoard device or from the web at screens.hootboard.com. Think of it as managing the software. Read more here

Managing your device lets you control a number of items on your device including which Screen Id is used, volume, network and more.  Think of it as managing the hardware just like you would with your router. Read here for how to access your device remotely via an access point.