How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [4.3.3]

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Posted May 6, 2011 at 12:59pm by iClarified

These are instructions on how to jailbreak your iPhone 4 on the 4.3.3 firmware using RedSn0w for Windows. The Mac version of this tutorial is here.

Make sure not to update to iOS 4.3.3 if you need an unlock as one is not yet available!

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here and place it in the Pwnage folder. Likewise, download the latest 4.3.3 firmware from below and place it in the same folder.

4.3.3 (4 GSM): iPhone3,1_4.3.3_8J2_Restore.ipsw

Extract the RedSn0w zip file into the same folder.

How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [4.3.3]

Step Two
Connect your iPhone to the computer and launch iTunes.

Select your iPhone from the list of devices on the left. Now hold down Shift and click the Restore button. Restore is preferred as it won't create any wasted space on your iPhone.

Navigate to the Pwnage folder on your desktop and select the 4.3.3 firmware ipsw. Click the Choose button to continue.

Step Three
Once iTunes has finished updating your iPhone to the desired firmware open the Pwnage folder on your desktop and launch the redsn0w application from the redsn0w folder we extracted earlier.

**Windows 7 users may want to try running the redsn0w executable mode as an administrator in Windows Vista compatibility. You can do this by right clicking the executable and selecting Properties from the contextual menu.

Step Four
Once RedSn0w opens click the Browse button

Step Five
Select the 4.3.3 firmware ipsw we placed in the Pwnage folder on our desktop then click Open.

Step Six
Once the firmware has been verified click the Next button to continue.

Step Seven
RedSn0w will now prepare the jailbreak data

Step Eight
From this window you can select the jailbreak options you would like.

Make sure Cydia is selected and click the Next button to continue.

Step Nine
Please plug your iPhone into the computer and make sure its OFF then click the Next button

Step Ten
RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here

Hold down both the Home button and the Power button for 10 seconds.

Release the Power button and continue holding the Home button until RedSn0w detects the device.

Step Eleven
Your iPhone will now reboot

Step Twelve
RedSn0w will then begin uploading the new RAM Disk and Kernel.

Step Thirteen
Once this is complete you will be notified that RedSn0w is done. Click the Finish button. When your iPhone finishes rebooting (5 minutes or so) it will be jailbroken with Cydia on the SpringBoard.

*As usual a big thanks to the iPhone Dev-Team and I0n1c for their hard work and contribution to the iPhone community.
**Windows 7 users may want to try running the redsn0w executable mode as an administrator in Windows Vista compatibility mode if you experience any trouble.

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Mano - January 28, 2013 at 10:33am

I have this firmware in my iphone and i want to upgrade it only to 5.1 even though 6.1 is out. Is this even possible?

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Luis - August 25, 2011 at 11:43am

At the beginning of the article it says do not update firmware to 4.3.3. I checked my iphone 4 and I got firmware 4.3.3 already. My baseband version is 04.10.01 Does it change anything on the procedure?

NaZz - July 29, 2011 at 2:53am

i am getting 3194 error from itunes on step two, help!!!!

Tara - July 29, 2011 at 9:33am

That means itunes is not recognizing your iphone. Update your itunes to 10.2 version and then connect.

NaZz - July 29, 2011 at 12:28pm

I have the latest iTunes 10.4 version. help please!

Tara - July 29, 2011 at 12:34pm

Some iPhone 4 users have reported that they are facing iTunes Error 3194. This error usually occurs while restoring or updating the jailbroken iPod Touch, iPhone and iPad to the newer firmware.

Nina - July 2, 2011 at 5:38am

I downloaded windows 4.3.3 firmware but for some reason there is no iPhone3,1_4.3.3_8J2_Restore.IPSW file like you show in your text or utube explanation. There is a directory with full of files but none of them has the IPSW extention. The restore file is is quicktimepreferences link. So resn0w cannot find the IPSW file because it dosn't exist. Can you tell me how to find the iPhone3,1_4.3.3_8J2_Restore.IPSW file? Thanks very much for your help Best Nina

Colin_Thames - July 4, 2011 at 11:21am

I got caught out by this too. If you downloaded using Internet Explorer trying downloading again using Firefox or Chrome. IE always seems to screw up the file extensions so it doesn't appear right. I tink there's a workaround if you only have IE but using Firefox is by far the easiest solution.

tom - June 28, 2011 at 1:53pm

bag of shit link does`t works

Li To - June 27, 2011 at 10:01pm

Link not working.

Gazmend - June 26, 2011 at 8:22pm

the link for redsnow download it's not working :S:S some help ??

Jagacms - June 26, 2011 at 11:51am

Works like a charm... didnt face anyissues.. i upgraded by iphone 4 from 4.1 to 4.3.3... and gevey sim also working fine... thanks a lot iClarified :)

hish - June 25, 2011 at 12:04pm

the link not work !!!!

Rui - June 21, 2011 at 5:14am

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 :)

jassem - June 16, 2011 at 12:29pm

the redsn0w link is brooking :(

Darren - June 9, 2011 at 2:58am

Just JB to 4.3.3, I haven't done a JB since 1st gen iphone, so i just have a quick quesstion. Everything is good so far, everything works and what not, but all my data is gone, music, contacts etc, is it safe to restore the data from a backup i have moments before i started the JB? It won't brick my phone will it?

GP - June 23, 2011 at 3:43pm

Yup it's cool to back up from your old backup. It will restore all of your data.

citoe - June 2, 2011 at 2:38am

i'm currently on 04.10.01.. can i jailbreak without having to upgrade my baseband? i'm worried i have to unlocked it after upgrade the baseband. anyone can advise?

Carlos Gouveia - May 20, 2011 at 3:48pm

After jailbreak I get no network signal....... the iphone it's turned in a ipod..... what do I have to do, anyone can help?

Broker - May 22, 2011 at 1:48pm

Having same problem low signal. Did u ever figure this out?

Paddy123 - May 23, 2011 at 3:15am

Even "Carrier Reset fix" do not work to solve the problem. Seems to be an Jailbreak error. Also tried it with redsnow rc16. Any answers ??? (IPhone 4 BB 04.10.01 / IOS 4.3.3)

Paddy123 - May 23, 2011 at 5:11am

Find the answer : 1. reboot in DFU mode 2. after reeboot activate mobile with itunes und wait for network signal (if you jailbreak with redsnow before activation than the problem with no network occurs) 3. Backup your files from itunes to phone 4. jailbreak

Carlos Gouveia - May 23, 2011 at 11:32am

I managed to solve it using this tut http://jaxov.com/2011/05/download-sam-to-activate-iphone-4-3gs-officially-on-ios-4-3-3/ good luck!

Carlos Gouveia - May 20, 2011 at 1:28pm

I get the error 3194. i have iphone 4 4.3.3 and it says iphone could not be updated error 3194

james - May 15, 2011 at 9:49am

the firmware file im downloading has no ipsw file attached where can i get my ipsw firmware?

GP - June 1, 2011 at 12:21pm

Download the file again and put .ipsw at the end of the file. It's trying to make it a different file.

matt - May 14, 2011 at 7:23am

Well tried to jail break with 4.3.2, all went well expect after rebooting the phone is stuck saying error mounting rootfs - read only, it says giving up after trying for 6000ms. Any one encountered this. I have already tried run as admin / compatibility modes. Need help from you guys !!!

Matt - May 14, 2011 at 4:16am

Hello all - My iphone is currently having 4.3.2. Can i use this method to jail break and upgrade it to 4.3.3 ? Thank you in advance !

kwanbis - May 13, 2011 at 4:28pm

"Step Two ... hold down Shift and click the Restore button... Navigate to the Pwnage folder on your desktop and select the 4.3.3 firmware ipsw. Click the Choose button to continue." That would update the BASEBAND, thus leaving the iPhone 4 unlockeable (for those who have an old baseband). How comes this is not mentioned?

matt - May 13, 2011 at 5:36am

An awesome site !

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