How to downgrade from ios 7.1.1 to ios 6.1.3?

Have an iPhone 4s and I want to know how I can downgrade to ios 6.1.3 I just got the iPhone 4s today from sprint

I don't think that you can do it easily, it is pretty complicated

You have to revert to a backup before the upgrade or find the upgrade manually and uninstall it, search it on Google.

Just stop diaper boy