Walkthrough: How to Jailbreak iPhone 3.1.3 with Spirit

So with the release of the Spirit jailbreak for iPhone, 3.1.3, it’s only appropriate to post a quick how-to, so here it is.  And of course, with a jailbreaking tutorial, here comes the disclaimer:

If you’re not sure what you’re doing and have misgivings about jailbreaking, you probably should stray away.  I will say, out of all the jailbreaks that have been released, this one is one of the simplest, and I’m talking blackra1n easy.  Walkthrough and video after the break!