The iPhone Dev Team is surely one of the most efficient group of hackers who provide Jailbreaking methods almost instantly within few hours of the release of the any new version of iOS. Now the iPhone Dev Team have updated their Redsn0w Jailbreak tool to 0.9.10b6 which can jailbreak iPhone 4, 3GS, iPad 1 and iPod Touch running on iOS 5.1. Basically the jailbreak is now available for A4 devices i.e those devices which run on the single core A4 processor which does not include the iPhone 4S, iPad 2 and the brand new iPad.
The jailbreak is not untethered but it is semi-untethered. After the jailbreak you can install a small package named Semi-tether which will allow you to boot your device without having the need to connect to a computer having Redsn0w installed but you will not be able to access all Apps and jailbreak tweaks.
How To Jailbreak iOS 5.1 Semi Untethered Using Redsnow :
Step 1 : Download the latest version of iTunes 10.6 and launch iTunes and backup your iDevice.
Step 2 : In case you haven’t upgrade your firmware to iOS 5.1. For direct download links of iOS 5.1 for your device click here.
Step 4 : Launch Redsn0w and connect your iDevice to the computer using U.S.B connector.
Step 5 : Click on Jailbreak and than Install Cydia.
Step 6 : Follow onscreen instructions to make your device enter DFU mode.
That’s it !! Your device is now Jailbroken but currently it will be tethered. So now whenever you have to reboot your device connect your device to computer launch Redsn0w and go to Extras and Just Boot. This will make you boot your device into the Jailbreak mode and you will have to do it each and every time you reboot.
Semi-Tether package is available in Cydia and it will help you to reboot your device without having the need to connect to a computer having Redsn0w. However Jailbreak tweaks and many Apps wont be available and the device will bot with minimum functions available. In order to gain full access you will have too connect to a computer having Redsn0w and do the process mentioned above to enter into the full jailbreak mode.
SemiTether package is available in Cydia in BigBoss repo: http://thebigboss.org/semitether. The package is available for free.
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