TO LOAD A NEW OS: 1. Download the new OS from the Support page of the Groove Synthesis website. The file type is "ldr" for the OS. 2. Connect the 3rd Wave to your computer using the USB connector on the back of the synth. 3. Once connected, the 3rd Wave will show up on your computer desktop as an external drive. 4. Copy the "ldr" file into the firmware folder on the 3rd Wave. 5. Once the file has finished copying, press the global button on the 3rd Wave, then use Soft Knob 1 to locate the "Firmware Update" command. 6. Use Soft Knob 2 to select go. 7. Press Soft Button 1 (refresh). The screen displays the name of the OS file that you copied to the firmware folder. 8. Eject the 3rd Wave drive from your computer desktop. 9. Disconnect the USB cable from the back of the 3rd Wave. 10. Press Soft Button 4 (ok).The display will alert you when the OS has finished updating. 11. Once the display indicates that it is finished, turn off the synthesizer briefly then turn it back on again. The updated OS version appears in the upper right corner of the display.