If I jailbreak my iPhone will it mess up?

If I jailbreak my iPhone will it mess up?

It depends on which jail breaking software you use. Jailbreaking your iPhone isn't likely to work. There are possibilities that sometimes the software might not work(all your other apps will work). Once you jail break it your phone's warranty will go. But you can get it back by restoring your phone. Jailbreaking WON'T mess up your phone.