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

POST

MAIL

Posted February 5, 2011 at 9:10pm by iClarified

These are instructions on how to jailbreak your iPhone 3GS and iPhone 4 using Greenpois0n for Windows. Greenpois0n supports the iOS 4.1 and iOS 4.2.1 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 4.2.1 if you need the unlock. Ultrasn0w does not support that baseband yet. The only exception is the iPhone 4. You can update to iOS 4.2.1 without upgrading your baseband by following this tutorial.

Step One
Open your web browser of choice and navigate to http://www.greenpois0n.com. Click the Windows link at the bottom of the screen.

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

Step Two
When prompted save the download to your desktop

Step Three
Double click the downloaded gp_win_rc5_b2.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 can remove Loader by pressing the Options button then the large red Remove Loader.app button.

Step Twelve
Restart your iPhone then run Cydia. Let it do all the necessary updates then follow our Unlock tutorial if possible for your device.

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

Follow iClarified

martin thomson - October 1, 2013 at 4:17pm

dont try this i bricked my iphone yesterday & ive JB same device about 4 times previously. pissed off now & fone's in shop

Reply · Like

Me - February 17, 2013 at 4:14pm

This crap does not work! I have tried the DFU crap about 30 times, never works!!!!!

amino - November 6, 2012 at 6:11am

yesterday i updated my 3gs from 4.2.1 to 6 but its not active and message me could not active ur iphone wat should i do guys??

Troy Stevens Jr - October 15, 2012 at 4:13pm

I'm going to attempt this today on a iPhone 3gs that was on 4.2.1 I did a restore all settings and content not knowing what it was.gonna do. So I'm going to download gp_win_rc6.1.zip and hopefully that will fix my slide for emergency call only with usb/iTunes background. Ill repost if it works as stated

website design - March 4, 2012 at 5:38pm

I appreciate all the effort you put into writing this post about iClarified - Add Comment . I will post a backlink back to your blog on my website as I think some of my clients might find it interesting.

Rui - June 18, 2011 at 11:07am

I want to jailbreak my Iphone4 , firmware 4.1, to the latest 4.3.3. I'ts jailbreaked and full of apps from Cydia. What do i need to do not to loose all my apps with the firmware upgrade? Do i need to upgrade the firmware in iTunes and then Jailbreak it or it doesn't need to update first? Cheers from Portugal :)

Kush - May 19, 2011 at 5:41am

Using 3gs on firmware 3.1.3 and Baseband 5.12 (New bootrom) JB by spirit n Unlocked by Ultrasnow. I wish to upgrade to 4.x os. Can someone please tell me 1)Will i lose all data and apps 2) will I have to upgrade from I tunes then JB it? (Just like a New Restore) 3) Can i Use pwnage tool or some other to upgrade n JB at the same time 4) Which SW to use for JB and Unlock and which os to select 4.0, or 4.1 or 4.2 or 4.3(I will need an Unlock) 5)Will firmware upgrade also change BB version?

Phil - May 11, 2011 at 4:43pm

Will this work with Verizon iPhone 4 with Modem Firmware 1.0.05 ? I have the version 4.2.6 (8E200). itunes would like me to update to 4.2.8, and im not sure if i should b/c im still not sure if i should jailbreak or not.

Red - April 7, 2011 at 4:16pm

I had to try the program twice but it worked exactly as shown the 2nd time round Thanks alot for the great run through :)

Opflex - March 25, 2011 at 2:44pm

Will this jailbreak work on an Iphone 3g.... it's not an "S" If not, can anyone point me in the direction of an untethered jailbreak for a 3g that is currently on 4.2.1 Thanks in advance.

Zaved Bhatti - March 23, 2011 at 10:30pm

Hi, Can anyone tell me how to unlock iphone 4 4.2.1 with firmware 3.10.1. I have already jailbroken it. Please help. Thanks.

Ben - April 18, 2011 at 10:35pm

Try using Sn0wbreeze. Really easy to use. A few headers: When it saves the new firmware (it creates a new firmware that you're supposed to restore to and it has Cydia on it), you need to locate it and open iTunes. Hold Shift and click Restore on iTunes. Rest is self explanatory.

Cássio - March 15, 2011 at 2:22pm

Hi Dear. We need also some positive feedbacks. Anyone, please post your positives experiences. Best Reagrds

Cássio - March 16, 2011 at 11:48am

JB done using Greenpois0n RC6.1 succesfuly IPhone 4 4.2.1 03.10.01 oficially unlocked. Tks/

lonelykk - March 19, 2011 at 2:39pm

Dear Cassio, At the outset first, Hats off to hardworking developers who makes such things possible .... Jailbreak works perfectly fine on using Green Poison RC6 but this update process fails to preserve baseband to firmware 1.59 (iOs 4.2) in iphone 4 and updates to 2.10.04 which makes iphone 4 unlockable as of now .... And also no activation procedure exists to activate or hacktivate apple iphone 4 .... Would u like to throw light on how to go about from here iphone 4 iOs 4.2 (2.10.04) ?? Wat to do next ?? Shall we Wait for iOS 4.3 to get jailbreak and unlocked or wait for 4.2 (2.10.04) unlock ??? Once again thanx for atleast making jailbreaking successful for iphone 4 iOs 4.2 ...

Ben - March 11, 2011 at 2:06am

Guys, I found out the main problem: When I'm entering DFU mode, this happens: -hold power for 2 seconds -turning on -hold home button for 5 seconds -completely shuts down -need restore Any ideas welcome.

kamak_kvp - April 1, 2011 at 1:44am

i have also facing this problem i have restored my iphone 3gs on 4.2.1 but my iphone gone in DFU mode and no greenpois0n and no limera1n nothing is working on it. did apple stop restoring 4.2.1 and responding for this firmware anymore

aznmvp - March 10, 2011 at 6:07pm

Does anyone have any issue with Facetime? I jb and unlock my preserved baseband on my IP4 going smoothly, but it's appear facetime not activating.

Vytaras - March 8, 2011 at 2:39am

Hello, I need help, I have iphone 3GS running the old 3.0.1 iOS and there is and old 04.26.08 baseband. Could anyone be so kind and tell me what is the safest way to jailbreak and UNLOCK(as my iphone is from USA and I live in other country)? And ofcourse is there an untehered jailbreak?

Karen - March 8, 2011 at 1:10am

hihi, i been trying to jailbreak my iphone 4 (ios 4.2.1) but keep failing using this GreenPoison (RC6).. may i knw what is the problem for jailbreak on my hp?

zmoe - March 5, 2011 at 10:28am

I tried this and was able to get into DFU but every time i go through the jailbreaking part it tells me it failed...any help please? running 3g version 4.2.1 (8c148)

Ben - March 11, 2011 at 2:07am

I can't get past the DFU. It blinks off.

faisalvhora - March 5, 2011 at 12:50am

i like apel

Edward Honey - March 4, 2011 at 9:20pm

Just use sn0wbreeze to make a custom ipsw that will give you an unlock, upgraded baseband and 4.2.1 all in one and jailbroken. has worked for 6 iphones for me and friends so far with a 100% success rate.

azizi - March 3, 2011 at 5:58am

can this jailbreak mc model of ipod touch 2g 3g 4g?

More Comments