Help to downgrade to 6.1.4 on IPhone 5 from iOS 7?

I tunes will not let me restore back to 6.1.4 it keep on saying "firmware not compatible" my phone is on the page that says activate, I have to ente DFU more for it to give me the option to "restore" on iTunes but any time I do that it says it cannot be restore.

Really need help.
If I restore it and send it back to factory settings will iTunes update it back to 6.1.4.

It's is a brand new iPhone 5 that I recently purchased 2 days ago.

No if you restore it it'll restore it to factory settings on iOS 7. Are you done developing g with the new beta os? Or did you pay to become one just to play with it? If you are a developer you do realize you can debug some of the problems yourself

Http:// ( go to this URL and see how to do it