If you have updated your iphone 4 to the new ios 5.1 and you want to jailbreak iphone 4 below guide is perfect for you just follow the steps given and your iphone 4 will be jailbroken on iOS 5.1. Below steps are very simple to jailbreak iPhone 4 on ios 5.0.1 and are also compatible with iPhone 3gs, ipod touch and ipad 1 on iOS 5.1 by using the latest version of RedSn0w 0.9.10b6. You have to note that this is tethered jailbreak that means every time you need to restart your iPhone 4 you have to follow the last step of “Just Boot”. Below are the steps on How to jailbreak iPhone 4.
Important Note: This jailbreak is not for iPhone 4S jailbreak, iPad 2 or iPad 3 jailbreak if these are running ios 5.1 otherwise if they are running ios 5.0.1 then it is OK.
Update: You can jailbreak iPhone 4/4S using the latest version of RedSn0w 0.9.10b8, Click Here for Tutorial.
Step 2: Extract the zip file and run the RedSn0w.exe file to start the redsn0w jailbreak process.
Step 3: There are two buttons “Extras” and “Jailbreak”, click Jailbreak to jailbreak and install Cydia
Step 5: Follow the screen instructions to put your device in DFU mode. RedSn0w will detect iPhone 4 and start installation of jailbreak and select “Install Cydia” when asked. (If not you can follow steps to put your device in DFU mode as instructed by clicking Next in previous step again). Close RedSn0w and boot tethered as mentioned below:
Step 6: Boot Tethered your iPhone 4: Restart RedSn0w by double clicking the exe file.
Go to Extra option and click “Just Boot”
Note: This is a tethered jailbreak and if you need to reboot your iPhone you need to do step 6 each time therefore you need computer to reboot your iPhone4.
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