Tuesday, October 12, 2010

How to Jailbreak Your iPhone 3GS, iPhone 4 Using Greenpois0n (Windows)

These are instructions on how to jailbreak your iPhone 3GS and iPhone 4 using Greenpois0n for Windows. Greenpois0n only supports iOS 4.1 firmware. Use Limera1n if you want to jailbreak iOS 4.0, iOS 4.0.1, iOS 4.0.2.

Remember: Do not update to iOS 4.1 if you need the unlock. Ultrasn0w does not support that baseband yet. The only exception is the iPhone 4. You can update to iOS 4.1 without upgrading your baseband by following these tutorials windows Mac.

Step One
Open your web browser of choice and navigate to http://www.greenpois0n.com. Or click here for Rc4 Windows Rc3 here <- found this link through google we can guaranty anything... link at the bottom of the screen on greenpois0n site.

Step Two
When prompted save the download to your desktop

Step Three
Double click the downloaded gp_win_rc2.zip file then drag the greenpois0n.exe file to the desktop. Double greenpois0n.exe from the desktop to launch the application

Step Four
Power off your iPhone then click the large Prepare to Jailbreak (DFU) button

Step Five
You will now be instructed on how to place your iPhone into DFU mode. You can get help with this here.

You will be asked to press and hold the sleep button for 2 seconds.

Continue holding sleep; press and hold home for 10 seconds.

Release sleep button; continue holding home for 15 seconds.

Step Six
Once your iPhone is successfully in DFU mode you may click the Jailbreak button.

Step Seven
Greenpois0n will now jailbreak your device

Step Eight
Click the Quit button once the software application has completed.

You'll notice some verbose mode text scrolling on your device.

Step Nine
After the iPhone restarts you'll notice a new Loader application on your Springboard. Press to launch it.

Step Ten
Press to select Cydia then press the large Install Cydia button that appears.

Step Eleven
Once Cydia has installed successfully you will be asked if you want to remove Loader from your device. Press the Remove button then press the Home button. Your device will now automatically reboot.

Step Twelve
When your iPhone has restarted you can run Cydia. Let it do all the necessary updates then follow our Unlock tutorial if possible for your device, iPhone 4, baseband 1.59.00 tutorial

***A big thanks goes everyone who made this jailbreak possible.

*thanks iclarified*

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- Posted using my iPhone 4


  1. greenpois0n error "no successful firmware download after 60000 ms!! giving up" Tried many, many times on 4.1 3GS.

  2. Same issue here....anyone have any options?

  3. great man............thank's.........

  4. eVader : i have same problem. "no successful firmware download after 60000 ms!! giving up" anyone can help please.....!

  5. @Evader and @Pung I am having the same problem!

  6. That error is easy to fix

    Copy 2 files to desktop

    Run from there... not inside a folder


  7. i would like to ask for lots of help from you all.

    recently bought a new unlocked iphone 3gs 32gb which was in version 3.1.2

    i then updated the version to existing version 4.1 and after upgrading to version 4.1. my phone was no longer "unlocked"

    understand that in order to unlock a iphone, i have to jailbreak 1st. thus i decided to try using greenpois0n.

    did all the processes after i have downloaded Cydia, my icon for cydia on the iphone was white (exactly the same as loader) and as i try to run cydia, the screen just refresh itself but nothing happen. Would like to ask for advice on what i should do.

  8. Since you updates to 4.1 stock you lost your unlock, you have to wait now for any new possible unlcks for the new baseband..

    And to male cydia work, completely turn off your iphone abd turn it back on...

  9. So if I already have a jailbroken iPhone 4 at firmware 4.0 all I need to do is update to 4.1 and jailbreak again with greenpoison right? Will it bring back my unofficial apps i had with 4.0 after the jailbreak?

  10. If you would like to update to 4.1 then use our tutorial to saw your baseband for possible unlock later... And yes you will have to redownload everything..

  11. I have Iphone 3GS 3.1.3 5.12.01 BL 6.02

    Can Activate it using Green poison?

    I have no official sim to activate?

    inform me if you try it

  12. I have an iPhone 3gs....I bought it with iOS3.1 and then jailbroken it..Then I updated it to 4.1 and used greenpoison to jailbreak it again but everytime I do it, I get an error message saying that Jailbreak failed :(
    Any ideas/suggestions anyone?
    Many thanks in advance

  13. Same as Konstantinos here. Got mine 3GS back from repairs with 4.1 installed. Tried this jailbreak but iphone gets stuck in a white screen and greenpoison states jailbreak failed.
    Any ideas?

  14. ""Same as Konstantinos here. Got mine 3GS back from repairs with 4.1 installed. Tried this jailbreak but iphone gets stuck in a white screen and greenpoison states jailbreak failed.
    Any ideas? ""

    same thing for me :(

  15. I am having the same problem as Konstantinos, I installed 4.1, ran greenpoison in dfu, and the phone repeatedly gets stuck on the white screen and eventually poision says that the jailbreak failed.


  16. can someone help, i have exactly the same problem as xiaohwee, white cydia icon... what should i do?

  17. Same problem

    Jail break fails and Iphone 3GS sits at white Screen - hold power to restart but no cydia. and GeenP0ison prompts that Jailbreak failed.

  18. OMG!
    Same problem!

    :( my iPhone 3Gs sits on white screen. bot nthing happend :(
    and then no Cydia!

    same as Shawn

  19. Same problem!!!!

    I do it all perfectly then it comes up on a white screen and says Jalbreak failed :(

    If its any help the when its counting down, on the last sequence thingy, I am holding down the home button and the thing goes away and says I can jailbreak at 9 seconds.

  20. what do i do if my baseband is 02.10.04.... do i just go through the procedure as normnal... i dont get this base band thig???

    got iphone 4 with os4.1 baseband 02.10.04....

  21. i have jailbroken and managed to download cydia with the loader, when loader prompt up 'do you want to remove loader from your device?' i pressed remove button and then home button. but the device didn't restart automatically, and there is a "WHITE" CYDIA and couln't be launched. Please Help!!

  22. "And to male cydia work, completely turn off your iphone abd turn it back on..."

    I have tried this steps many times, but it's not working. is there any other solution for "WHITE CYDIA"?

  23. I am having the same problem as many above... greenpois0n says it's ready to jailbreak, then tries but fails!! Any help????

  24. the ones who are getting a white screen and failed jailbreak you need to use RC3 of greenpois0n. google for it

  25. just posted a rc3 link found through google, can't be sure 100% real greenpois0n, use at own risk.

  26. both dont work :( I have been trying for 2 whole days to jailbreak my 3gs 4.0.2 but nothing works.

  27. for those getting the no firmware download after 6000ms. ensure youe are connected to wifi before the jailbreak. works fine then :)

  28. Last comment is correct - The problem is when the wifi is not connected, the update cannot complete - You must connect to a wifi access point before you run the jailbreak - It will continue thru the install and you will have success! Good find.. guy above me (68cafe80-348c-11e0-8dd0-000bcdcb5194 )

  29. wifi in DFU ?????!!!!! Next you'll be asking for 5 bars of signal strength in DFU ...