How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [5.0]

Posted October 18, 2011 at 7:51am by iClarified | Please help us and submit a translation by clicking here | 521259 views
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These are instructions on how to jailbreak your iPhone 4 on the 5.0 firmware using RedSn0w for Windows. The Mac version of this tutorial is here.

This procedure will cause you to upgrade your baseband potentially ruining your chances for an unlock. Please wait until we have posted a Windows tutorial on how to update to iOS 5 using a custom ipsw if you need an unlock. The jailbreak is also tethered which means you will need to connect your device to the computer each time you reboot. Finally, 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 RedSn0w 0.9.9b6 from here and place it in the Pwnage folder. Likewise, download the 5.0 firmware from here and place it in the Pwnage folder. (Note: you do not need to download the 5.0 firmware if you are already on iOS 5.0)

Extract the RedSn0w zip file by double clicking it.

Step Two: (You can skip this step if iOS 5 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 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 5.0 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.

**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 Jailbreak button

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 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.

Once you have jailbroken you will need to rerun redsn0w to boot tethered.

Step One
From the main RedSn0w menu click the Extras button.

Step Two
Select Just boot from the Extras menu to just boot tethered.

*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 - March 31, 2013 at 1:09pm
try this one: 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 be locked ever again, it was the cheapest price that i found on the net only 9$ !!!
Randi - December 26, 2011 at 1:54am
At last, soomene comes up with the "right" answer!
ccooool - December 13, 2011 at 3:15am
i tried everything, changed host file etc and still i get get error code 3194 i have factory unlocked jailbroken iphone 4 32gb on ios 4.3.3 i am trying to update to 5.0.0 and then jailbreak but when i try updating i keep gettig error code 3194 can onyone please help
dsadsa - December 22, 2011 at 9:10pm
Was getting error 3194 on iTunes and I had to launch latest TInyUmbrella and DISABLE "set hosts to Cydia on exit" for this tutorial to work
Rahul Kalwani - December 9, 2011 at 5:26am
I have an Factory Unlocked iPhone 4 on IOS 5... Should I follow this tutorial to jailbreak or not??
m tariq - December 5, 2011 at 2:36pm
redsn0w.exe has encountered a problem and needs to close. We are sorry for the inconvenience. getting this massage every time i try to just boot. please help
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