Dc619

I recently bought the Classic and the BT 250 it came with is too busy for my wife, she prefers less buttons. I ordered a BT 400 because I was under the impression it would work with The Classic. It does but many of the functions that are controlled by the Smart Remote App aren't available without the app and apparently the app isn't available for download, it only comes installed on certain boxes. Has anyone tried to use the 400 remote and had any success? Thanks