You need Microchip Studio which can be downloaded here
- Inside Micropchip Studio, open the Midi_Fighter_Twister.atsln solution
- Select the desired configuration (Debug or Release)
- Build the solution via Build > Build Solution
The resulting Midi_Fighter_Twister.hex file now can be found in the respective Debug or Release target directory
You need the Midi Fighter Utility which can be downloaded here
- Connect the Midi Fighter Twister to your computer directly (DO NOT USE A USB HUB!)
- Launch the Midifighter Utility software which should automatically detect the connected device. (If not, make sure that no other software is currently using the Midifighter Twister!)
- Tools > Midifighter > Load Custom Firmware > For a Twister
- Navigate to the Midi_Fighter_Twister.hex file and open it
- Choose "Yes" to proceed
- Wait until the firmware update process is completed