Version française. Deutsche version. DT25/DT50 FIRMWARE INSTALLATION INSTRUCTIONS   NEEDED: A MIDI interface that connects to your computer via USB (download the current Driver for it if you don't have it installed) 2 MIDI cables (or a MIDI interface such as the M-Audio Uno that comes with attached MIDI cables, note: this interface must have its own set of Midi drivers) NOTE: Line 6 recommends a name brand USB to MIDI interface produced by an audi