How to Jailbreak Your iPhone 4 Using RedSn0w (Mac) [5.1.1]

Posted June 8, 2012 at 6:31pm by iClarified | Please help us and submit a translation by clicking here | 297035 views
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These are instructions on how to jailbreak your iPhone 4 on the 5.1.1 firmware using RedSn0w for Mac.

This procedure will cause you to upgrade your baseband potentially ruining your chances for an unlock. Please follow this tutorial to update to iOS 5.1.1 using a custom ipsw if you need an unlock. It may be prudent to save your SHSH Blobs by following this tutorial before continuing.

If you want to jailbreak a lower firmware version you can find the appropriate tutorial here.

Step One
Create a folder on your desktop called Pwnage

Download the latest version of RedSn0w from here and place it in the Pwnage folder. Likewise, download the 5.1.1 firmware from here and place it in the Pwnage folder. (Note: you do not need to download the 5.1.1 firmware if you are already on iOS 5.1.1)

Extract the RedSn0w zip file by double clicking it.


Step Two: (You can skip this step if iOS 5.1.1 is already installed on your device)
Connect your iPhone to the computer and launch iTunes.


Select your iPhone from the list of devices on the left. Now hold down Option 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 5.1.1 firmware ipsw. Click the Choose button to continue.


iTunes will now update your iPhone to the new firmware.

Step Three
Launch the redsn0w application from the redsn0w folder we extracted earlier.


Step Four
Once RedSn0w opens ensure your device is connected and click the Jailbreak button


You may be asked to select your jailbreak method. The preferred method is the DFU RAM Disk method. Click Yes to select that method.


Step Five
Turn OFF your device then click the Next button


Step Six
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 Seven
Your iPhone will now reboot


Step Eight
RedSn0w will now prepare the jailbreak data.


Step Nine
Select Cydia from the list of options and click Next.


Step Ten
Your iPhone will now be rebooted again and RedSn0w will begin uploading the new RAM Disk and Kernel.


Step Eleven
Once this is complete you will be notified that RedSn0w is done. 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, Chronic Dev-Team, and Geohot for their hard work and contribution to the iPhone community.

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itayms - March 19, 2013 at 5:12pm
try this one, http://www.rapidunlockers.com/ I have unlocked my phone on very very fast (about 6 hours total) and cheap, now i can update to any version without having to worry that my phone will not be locked ever again. Only 9.99$ for phone unlocks!!!
jay patel - November 11, 2012 at 12:42pm
i just jailbreak iphone 4 version -5.1.1.(9b208) firmware 04.12.01 but i can't found any service (vodafone india) so what should i do?? reply must..
Dallon bush - May 15, 2012 at 5:59pm
Can you post how do do this on windows please ?
Ali - March 12, 2013 at 12:50pm
easy to jailbreak your iphone is by ( evasi0n ), so simple download the software, conect your iphone, open the evasi0n software and click on jailbreak.. in few second jailbreak complete without any problem or bulshit....! this is direct link try http://evasi0n.com/
Rabby - March 12, 2014 at 6:18am
Is possible to download apps through cydia
moneypenny75 - May 15, 2012 at 5:10pm
Help with Iphone 3GS (bought in Denmark). I have an Iphone 3GS i got from a friend who updated and bricked a previously unlocked phone. It has baseband 06.15.00 and firmware 5.1.1. I jailbreaked using Redsn0w, installed Ultrasnow fixer and then ultrasnow 1.2.5. After that "no service" so I flashed ipad baseband using Redsn0w. After that a carrier (not mine) showed up for a few seconds but then again "no service". If i look in network selection 3 carriers pop up (not mine) and if I try to choose one it says "restrictet network". Ideas anyone ???
Jake - May 15, 2012 at 5:10pm
Did not work for me... Cydia icon is completely white and doesn't open! My iphone 4 is CDMA 5.1.1 verizon wireless. Any solution?
PitbullSyndicate - May 15, 2012 at 5:13pm
Yes it did work now just boot tethered in redsnow
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