Hi, I have an Iphone 4 running IOS 5.1. I'm thinking about jailbreaking it to test it out but I want to be able to go back the regular Ios if i don't like the jailbreak. From what I understand I want to create a custom Ipsw using redsn0w 0.9.10b6. Do I click the create custom ipsw and then load that onto my phone? I just need a little walk through of all the items I would need if I wanted to get my phone back to normal.