hello, have added the device in our code library, pls try to add it via searching Brand:Samsung Model:QA55Q7FNA For 4 different devices were not recognised by the HUB.pls provide the specificbrand and modle of your devices to us for checking About manually learning mode, pls see below steps: 1.Enter the information for your device. 2.Enter the name of the key you want to learn 3.Follow the instruction in the app to learn form the original remote When learning, the original remote should be pointed toward the circular icon, at a distance of 3-5 inches and perpendicular to the hub surface,