In addition to magnetically attaching your USB-C based iPad Pro or iPad Air to StudioDock, you need to slide the iPad into the USB-C connector. This is most easily done when StudioDock’s mounting plate is in the vertical (portrait) position and the USB-C connector is at the bottom of the mounting plate. When you slide the StudioDock into the USB-C connector, you will hear a “click” to indicate the iPad has been docked into StudioDock properly. If issues persist, try pressing the power button on StudioDock to cycle power.