How to Jailbreak Your iPhone 3GS Using RedSn0w (Mac) [5.1.1]

Posted June 18, 2012 at 8:35am by iClarified | Please help us and submit a translation by clicking here | 216387 views

These are instructions on how to jailbreak your iPhone 3GS on the iOS 5.1.1 firmware using RedSn0w for Mac.

Remember 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: (Skip this step if you're on iOS 5.1.1 already)
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 click the Jailbreak button

You may be asked to choose between the DRU ramdisk method or the backup/restore method. Click Yes to use the DFU ramdisk method.

Tell RedSn0w whether you have a newer or older iPhone 3GS to continue.

Step Five
Plug your iPhone into the computer and make sure its OFF 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 prepare the jailbreak data.

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

**IMPORTANT: If you want to upgrade to the iPad baseband then downgrade to 05.13 for unlock check Install iPad Baseband. YOU CAN ONLY DO THIS IF DIGITS 3-5 OF YOUR DEVICE'S SERIAL NUMBER ARE LESS THAN 134 (xx133).

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 and Geohot for their hard work and contribution to the iPhone community.

Add Comment
ReutM - April 24, 2013 at 8:07am
try this one, I have unlocked my phone there. very fast service (about 6 hours total) and cheap, now i can update to any version without having to worry that my phone will be locked ever again! Only 9.99 for phone unlocks!
Mellish - October 20, 2012 at 12:03pm
Awesome. The whole family gathered around to watch the tiny print iPhone bios boot... 'Wow!'.. Smart people!
ahmed ezz - October 2, 2012 at 3:18pm
thanx for u
Dennis Hesselbarth - September 15, 2012 at 3:21am
Notice: If you have a locked phone from an Apple "supported carried" (eg: ATT) but you wish to jailbreak and unlock the phone for use on a "non-supported" carrier (eg: T-Mobile), you must get your hands on a SIM from the original supported carrier to successfully activate your phone during the iTunes restore. This is a new "feature" Apple has instituted. So find a friend on ATT and ask to borrow their SIM for 30 min. while you jailbreak to 5.1.1 and activate your phone. Then you can use UltrasnOw to unlock and use your "non supported" SIM.
Yarly Queiroz - July 13, 2012 at 8:57pm
How do i proceed with an 3GS old bootrom Custom 5.0.1 firmware? Do i need to generate a custom FW to keep my baseband and then, update it?
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