First, my FB only came with two buttons A + B and not as shown with four buttons. Secondly, I have an hour tried all searchable here instructions that yes sometimes quite different from the supplied instructions, plus all the video tutorials on YouTube that thing just does not work! And it was not because of an incompatibility of the first FB, I have tried three different remote controls, all of which use the required frequency 433.92 MHz and all are not on the (rather long) incompatibility list of the manufacturer. It's just annoying! Probably the manufacturer expects that most customers of this scrap is too cumbersome at a price of eight Euro resending ...