Below is the step wise guide on how to jailbreak ios 5.1 semitethered. Please note that this jailbreak for ios 5.1. is not compatible with iPhone 4S, ipad 2 and the new ipad that was released yesterday. If you want to jailbreak ios 5 on iphone 4S and iPad2/3 it is recommended that you keep on existing iOS 5.0.1 and refrain from updating to ios 5.1. You can jailbreak 5.0.1 using Absinthe for iPhone 4S and iPad 2. The jailbreak which you will get by following procedure is semi-tethered which means you have to apply the last steps every time you need to restart your device. Similarly if you need to unlock or you already have unlocked your device it is better to not update to ios 5.1.
For Absinthe Jailbreak Click Here to go to Absinthe section.
Other iOS 5.1 / iOS 5.0.1 Tutorials:
Following are the steps on How To Jailbreak 5.1
Step 1: Download latest version of RedSn0w 0.9.10b6 by clicking below links:
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 4: Follow the instructions given on Next screen and put your iPhone/iPod Touch in DFU mode. Press Next.
Step 5: Follow the screen instructions to put your device in DFU mode. RedSn0w will detect iPhone and start installation of jailbreak and select “Install Cydia” when asked. (If this process does not start you can follow steps to put your device in DFU mode as instructed by clicking Next in previous step again). Close RedSn0w.
Step 6: Boot Tethered your iphone or iPod touch 4g: Restart RedSn0w by double clicking the RedSn0w.exe file.
Go to Extra option and click “Just Boot”
Your iDevice will restart and now it is jailbroken tethered.
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 iPod touch 4g.
If this ios 5.1 jailbreak is not working for you, you can try Sn0wbreeze ios 5.1 jailbreak software by visiting How to jailbreak ios 5.1 using SnowBreeze