The FCB1010 is an extremely affordable and robust piece of hardware. Unfortunately the original firmware contains a few nasty bugs and also misses some essential functionality. After diving into the FCB1010 internals and solving the most annoying bugs back in 2006, we decided to listen to the most frequent feature requests of FCB1010 users, and add them to the firmware while we were at it. This was the birth of "UnO" : an UnOfficial firmware version, because it was not developed by the Behringer team. But after more than 10 years we can say that UnO more or less has become a standard add-on, turning the FCB1010 into a very powerful MIDI controller.