Easy Jailbreak for Your IOS 4.2.1 IPhone/iPod





Introduction: Easy Jailbreak for Your IOS 4.2.1 IPhone/iPod

Have you been searching for how to jailbreak your iPhone/iPod TOuch on firware 4.2.1? Well your search ends here! This a tutorial on how to jailbreak your iPhone/iPod Touch in less than 10 minutes!
Feel free to ask me any questions.

Items Needed:
1. Computer
2. iPhone/iPod Touch on 4.2.1
3. Internet Access
4. Apple Connector Cable (Battery Charging Cord)

Step 1: Preparing to Jailbreak

First, you should sync your device with iTunes and back it up, just in case something goes wrong.

Step 2: Jailbreaking

Go to www.Greenpois0n.com and select the operating system you are using, and run the file when it finishes downloading.

Step 3: Enjoy Your Jailbroken IDevice

Follow the instructions in the program, and then you're jailbroken! You will have an app called Loader on your Springboard. Run it, and you will have Cydia.



  • Epilog Challenge 9

    Epilog Challenge 9
  • Sew Warm Contest 2018

    Sew Warm Contest 2018
  • Gluten Free Challenge

    Gluten Free Challenge

We have a be nice policy.
Please be positive and constructive.




I did this jailbreak about 2 weeks ago when it first came out for firmware 4.2.1 and it wouldn't let me get installous. I'm thinking its a bug in it, because its the newest jailbreak, but that was a real big problem for me. I took the jailbreak off of my iPod now. I'm hoping that this bug will be fixed. Does anyone else have this problem?

I have Installous, and is now fixed. I jailbroke my iPod Touch 3G the day the Windows Jailbreak for 4.2.1 came out. Try it out now, it should work.

I'm so stupid doing this in the far future. I got greenp0sion and I try, Try, TRY again it does go in dfu mode. So any help or am I screwed?

It doesn't go in dfu I meant sorry.

When I try to install it, it says "Product configuration is missing!"

I try to go to www.greenpois0n.com , yet internet is telling me the page no longer exists... SOMEONE PLZ HELP! I have an ipod that i want to add other apps on, but all i have is music, and i have had this ipod for 6 years now, with only music on it...

It worked... Deym...

how safe is this jailbreak and will it slow down my ipod?

It is very safe, there is a very low chance that it may not allow your iPod to connect to the computer, but that is a 1 out of 1000 chance that that may happen. It might slow down your iPod, depending on how many GB's it is. But there is an app called Speed Intensifier, which speeds up your iPod greatly.

my ipod is 8g's will that slow it down