well if you have the software you can find the firmware file its easy, just bring up your firmware on the radio, hit the buttion to move it to the next screen (shows the connection speed) then open the firmware side of your software, open the firmware file, plug the porgram cable in, and send it. then when thats done turn off the radio and back on, exit firmware program, open software and change on the model from fleetsync to mdc1200, then go do the decode and encode stuff you need and write to radio.