How to get rid of jailbreak?

I have an iPod touch 4th generation and a few months ago I jailbroke it. But now I want to take it back to apple because the battery will die in 10 minutes flat. So at first I tried going to settings and erase all content and data but it was stuck on the apple loading logo so I read about it and it said to NEVER do that. So I turned it back on and it said I should go to iTunes and restore it. So I plugged my iPod in but since its 6.1 it said that I needed to have the latest version of iTunes to use my iPod. So I downloaded it, and now it says I need the latest version of OSX or something like that. I have no idea how to get it though:/. Can someone tell me another way to get rid of jailbreak or how to update my MacBook Pro? I'm getting an iPhone for christmas, and I can't last another 10 months with this horrible battery.

Also, Cydia is gone for some reason:/.So if there are any ways to get rid of jailbreak using that, it won't work.

Did you try updating the firmware on iTunes, that may take out the jailbreak

  • Should I get rid of my iPhone and get a basic phone? I've had an iPhone for 2 years, and my contract runs out 9/2/12, should I get a 4s or a Pantech Jest 2? I want to save my dad money, and all I really use my iPhone for is music and Facebook. My friends say I should stick with my iPhone, but I don't know… Share your input, thanks
  • I bought a Mac, how do I get rid of linux and install Mac OS again? I bought this mac second hand. It is an iBook G4, but the people installed linux on it and I would like the OS software on it instead as I have an iPhone and an iPod and iCloud and I would just rather deal with something that I'm familiar with, but I have been looking and I have no idea how to delete it and put what I want on it.
  • How to get rid of Pandora ads on iPhone? I can't stand the damn things. I have an iPhone 4 and its not jail broken but is there a way I can somehow change something to where I don't have them anymore? Love the app just can't stand the ads.
  • How to get rid of overage charges (at&t)? I own an iphone 4, and my data plan is $20/300 gb. I went over my plan by 12.11 mb, so obviously I'm billed an extra $20 in my next bill. What can I do to get rid of the overage charges? I really do not want to pay the extra $20. Should I switch to a new plan? Can I call in, and ask someone to get rid of it?