Ok, so I have it figured out I think. Didn't test on the Shield yet but its working on the computer. One or two things in combination I didn't do. #1 First thing you need to do is start the 'activity' with the Harmony remote. #2 You have to have the button assigned with the 'customize buttons' option in the Harmony software. Apparantly a button can't be assigned in Flirc if its not assigned in Harmony first....which is logical I guess as if its not assigned in the Harmony menu the the remote is not sending a signal when the button is pushed.