I just ordered one and was looking at the units they are compatible with, and see there is an app in the app store from lionel with a link to update/upgrade the universal remotes. Supposedly the newer remotes and the update will allow connecting to some of the older LC sets (not all though). The update uses the bluetooth from your phone to link to the remote. My remote comes tomorrow so I'll see what I have and if my version will need the update.
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