Removing the latest update from iPhone 5c

Hello everyone! My iPhone keeps on going for automatic updates when I am connected to the Internet. I know this is very common to all the smart phones that updates are automatic. But the last update, there was something in it I really don’t want it, I want my phone to be restored to previous settings. Is it possible for me to downgrade my iPhone 5c from the new update to the previous one? Thanks a lot for the help!
