We are going to use the latest version of Redsn0w, which is Redsn0w 0.9.10b6 to semi untethered jailbreak iOS 5.1 on iPhone 3gs, 4, iPad 1 and also iPod touch. And remember, semi untethered jailbreak means that you need to "just boot" tethered each time your iPhone is rebooted or turned off for whatever reason.
Before we begin, this is a highly recommendation words for those who are still using iOS 5.0.1 firmware to not update your firmware to iOS 5.1 if you want to continue enjoying the untethered jailbreak utility or else you will loose everything that makes you smile everyday.
How To Semi Untethered Jailbreak iOS 5.1 On iPhone 4, 3GS, iPad 1 And iPod touchDownload the following.
Step 2: Open Redsn0w to select Jailbreak option. Select (check) Install Cydia, continue by putting your iPhone into DFU mode, the steps to do so can be found on the onscreen instructions.
Step 3: Choose Extras and then Just Boot option. Remember since it's semi untethered jailbreak, then you are required to repeat this step each time your iPhone or iOs device is rebooted.
Done! Congratulation you have semi untethered jailbreak your iOS 5.1 on iPhone 4, iPod touch and iPad 1!
- Downgrade iOS 5.1 To iOS 5.0.1, 4.3.5, 4.3.4, iOS 4.3.3 On iPhone 4, iPad, iPod Touch.
- Tethered Jailbreak iOS 5.1 With Sn0Breeze 2.9.2 / 2.9.3 For Non A5 Device.