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How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [5.0b1]

Gregoris

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NOTE: THIS TUTORIAL ALSO WORKS FOR IOS 5 BETA 2, JUST POINT REDSN0W AT BETA 1 AND IT WILL JAILBREAK BETA 2 AS WELL. THIS IS A TETHERED JAILBREAK AND THERE WILL LIKELY NOT BE A UN TETHERED ONE UNTIL AFTER THE OFFICIAL RELEASE OF IOS 5.

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Today's 5.0b3 can be jailbroken with last month's redsn0w Dev-Team Blog - redsn0w iOS5beta (point it at 5.0b1 IPSW..devs only please!)

Since iOS 5.0 has not yet been released these are instructions for developers only. This procedure will cause you to upgrade your baseband potentially ruining your chances for an unlock, it will not hacktivate so you must have your UDID registered with a developer, and it is tethered.

for more information about beta 5 and how to install it read here > http://www.iphoneforums.net/forum/ios-forum-13/how-get-ios-5-beta-14838/index2.html#post78959

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here (https://sites.google.com/a/iphone-dev.com/files/home/redsn0w_win_0.9.8b1.zip?attredirects=0&d=1) and place it in the Pwnage folder. Likewise, download the latest 5.0 firmware from the iOS Dev Center and place it in the same folder.

5.0b1 (GSM): no download link as this is for devs only atm.

Extract the RedSn0w zip file into the same folder.

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

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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.

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Navigate to the Pwnage folder on your desktop and select the 5.0 firmware ipsw. Click the Choose button to continue.

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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.

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Step Four
Once RedSn0w opens click the Browse button

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

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

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Step Seven
RedSn0w will now prepare the jailbreak data

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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.

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

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Step Ten
RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here (iClarified - iPhone - How to Put an iPhone Into DFU Mode)

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

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

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Step Eleven
Your iPhone will now reboot

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

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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.

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BOOT TETHERED:
Since this is a tethered jailbreak you must use Redsn0w to help you boot back into your jailbroken device if its powered off for any reason. Simply connect your iPhone to the computer, launch RedSn0w, select Just boot tethered right now from the options window and click Next to have RedSn0w boot your device.

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*As usual a big thanks to the iPhone Dev-Team and Geohot 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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zacky218

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Wow! Thanks! I will definitely try this step by step process.
 

Par0normalSkiLL

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Just so everyone knows, theres a beta5 out that has alot of fixes. i suggest downloading the latest version of redsnow
 
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