1. Open the LM Flash Programmer.
2. Select the Configuration tab.
3. In the Quick Set drop down list, choose Manual
Configuration.
4. From the Interface area:
To update the “Slave” choose “USB DFU”
Remove the usb cable from the GOM-804/805 and
then re-plug it in rear panel.
Press the “Refresh” button, the information
window at the bottom should now read “1-Device
firmware Upgrade”.