How to Jailbreak iOS 5.1.1 with Redsn0w

If you want a tethered jailbreak of iOS 5.1.1 with the latest iPhone Dev Team’s Redsn0w tool then follow the guide written below to do that.

Note: This guide will only work to jailbreak iOS 5.1.1 over A4-devices including iPhone 4, iPhone 3GS, original iPad 1, iPod Touch 4G and iPod Touch 3G, so it does not support iPhone 4S, iPad 3 and iPad 2.


Jailbreak iOS 5.1.1 with Redsn0w


  • Download redsn0w 0.9.10b8b for Mac / Windows
  • Download iOS 5.1 for your iDevice
  • Download latest iTunes
  • Upgrade your iDevice to iOS 5.1.1 by grabbing over-the-air update (OTA) by navigating through “Settings” > “General” > “Software Update” on device, or download iOS 5.1.1 via iTunes direct link
  • Back up your iDevice through iTunes, just as a precaution


Open Redsn0w, click “Extras”


Click on “Select IPSW” and browse for your downloaded iOS 5.1 IPSW file from your computer, in a while Redsn0w will recognize your iOS 5.1 file


Go back to RedSn0w Main screen and click on “Jailbreak” button


Now, follow the on screen instructions to put your iDevice into DFU Mode


When your iDevice will get enter to DFU mode, RedSn0w will start identifying and build process and also it will load jailbreak data


Click on “Install Cydia” check box to select it, and click next button to initiate jailbreak


On completion of process, your iDevice will reboot


Now, again put your iDevice into DFU mode


From main screen of RedSn0w, click “Extras” > “Just Boot” for a tethered boot of your iDevice and then you will find Cydia icon on springboard

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