• Connect your printer to your PC
  • Download and unzip XLoader (http://russemotto.com/xloader/XLoader.zip)
  • Download and extract the firmware CR10S-300.rar file attached
  • Open up Xloader.exe and upload the CR-10S-300.hex file extracted in the previous step
  • Under Device - Ensure you have Mega(ATMEGA2560) Selected
  • Select the correct COM port your printer has been assigned to
  • Leave the Baud Rate at 115200
  • Finally, click the 'Upload' Button