First, connect your current Series III Console to Universal Control (USB or Ethernet)
Once your mixer shows in Universal Control, click on it.
Click the Settings gear in the top-right corner of "Mixer-view"
Find and click on the "Backup" Tab
>Click on "Backup" and you'll see a file in the backup list with the date when the backup is completed.
*Keep in mind that the Backup only saves Projects, Scenes, and Presets. If you have not saved your current settings to an actual Project/Scene/etc then those settings will not be saved in the backup.*
Disconnect your current console, and then connect the NEW console.
Open the new console's settings and enter the access code if needed.
Navigate back to the "Backup" tab.
Highlight the Backup file your recently created.
You'll see Universal Control perform the restore and your old mixer's settings will now be on your new Series III Mixer.