When you say you have copied another one and built it, do you mean another Tali H500? They are only sold as ready build hexacopter drones? Do you mean you are building your own hexacopter? If so some images showing the problem and how you have built it will help. The Devo flight controller is not realy designed to be used with custom drones. My suggestion would be to scrap it and rather use something like pixhawk or APM.
However you might be able to connect to your devo flight controller via mission planner.