How to Jailbreak iOS 4.1 with Greenpoison

As we know that Chronic Dev Team has released its Limera1n based “Greenpoison” jailbreak tool for iOS 4.1, but it works only on iPhone 4, iPhone 3GS, iPod Touch 3G 4G and iPad.

Here is the complete step by step “How To” guide to jailbreak the mentioned idevices on iOS 4.1 using Greenpoison. It is to inform you that the main principle and working of this jailbreak is similar to Limera1n because both are based on the same exploit.

Step 1: Download Greenpoison and run it on your PC.

Step 2: Switch off you iDevice and connect it to PC.

Step 3: To put your iDevie into DFU mode, follow the steps mentioned on the screen of Greenpoison.

Step 4: When the phone is in DFU mode, you will see the message “Ready to Jailbreak”.

Step 5: Now click on Jailbreak and wait for status bar to complete.

Step 6: Once the jailbreak is complete, your iPhone will reboot.

Step 7: Now you will have a “loader” icon on your iDevice Home screen. Launch loader and select Cydia to install it.

Step 8: After the Cydia has been installed successfully, you will asked to remove the Loader. Hit “Remove” button to uninstall it.

Step 9: Reboot your phone and you will have a jailbroken idevice with Cydia installed.


  • Download Greenpoison here (direct link)

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Updated 12 years agoCategorized as Jailbreak

By A. Usman

Loves new tech, especially from Apple and Google.

View all of A. Usman's posts.

29 Replies

  1. Mattsays:

    When i do the buttons, I click on jail break and then my ipod screen turns white. Then about 10 seconds later it goes to the default screen (apple logo) and no cydia.

  2. osterdsays:

    is there a greenposion to iphone 3gs ios 6 yet

  3. cong namsays:

    Hi all
    i really need your help,i did my iphone 3gs 4.1(8B117) follow the instruction on “greenpoinson”jailbreak but the whole steps are done but the last step i didn’t see the complete button light on, my iphone reboot but the icon “greenpoinson” not appear on my iphone screen ?

    1. Don’t you see loader icon?? Reboot and try again.

  4. Anonymoussays:

    Pressing the loader button, it opens, and closes instantly… WHY!!! :(((

  5. Plainchnchipsays:

    The Loader Butten Did Not Appear

  6. Locky_duggo_2486says:

    oii. it wont let me open the loader -.-

  7. Lousays:

    i am unable to connect to my mobile service provider.

  8. Camasirmakinesisays:

    thank u

  9. Mundussays:

    4.2.1 when???????????????

  10. illmanrabblesays:

    i did it it worked but i cant use the wallpaper. how do i manage that?

  11. HelpPlzsays:

    on linux it just crashes after I put it into DFU mode

  12. When will jailbreak be available for iOS 4.2.1. for the iPhone 4?

    1. iPhone Dev Team is working on it and it will be released just before Christmas Holidays. Lets see what happens.

  13. Niffitmansays:

    jailbreak failed??

  14. Mjneumann2000says:

    i do all the buttons it tell me to do and it says try again

  15. Katiebarnes70says:

    oh and this is for 2nd gen 4.1 mc model

  16. Katiebarnes70says:

    ok i just figured out what to do if the icon doesn’t show up after going through the whole process… i went to my settings and hit reset all and once my ipod turned back on the icon was there… yes it will delete any apps or music/ videos that you did have, but it is totally worth it and can get it all back for free

  17. noldracosays:

    hah never mind. it totaly works =)!!

  18. noldracosays:

    it acted like it worked,, but after all was said and done i dont see a difference in my ipod? how do i know its jail broken? wheres the cydia app?

  19. Myominsays:

    i still can’t install some applications those i got from torrent.. why?

  20. aleesays:

    This jailbrek isn’t working on iPhone 3G S IOS 4.1 new bootrom! I try it!

    1. Yes, it doesn’t work. Did you read the second line of this post?

  21. Jacksays:

    My Device went into DFU mode but the jailbreak button did not appear, it keep saying try again.

    1. You device is not in DFU mode, try again by pressing the correct button in correct order.

  22. Mgizzlesays:

    doesnt work! Keeps locking up at the end!

    1. Khadija_imadisays:

      first it happened with me but try hard it will work

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