It was only yesterday when Apple has released it’s new iPad, along with Apple TV and iOS 5.1 which enables Japanese Siri for Japan users, and voice dictation for the new iPad users. Just like other iOS releases, the company has patched the security bugs which allowed hackers to publish an untethered jailbreak on iOS 5.
Today, the iPhone Dev Team has released a temporary solution for A4-chip device users and named it as Redsn0w 0.9.10b6, which allows you to jailbreak iOS 5.1 on iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch 3G, and iPad 1. Unfortunately, the jailbreak is currently tethered, which means that you will have to plug-in your device to a PC or Mac and boot tethered once your device switches off for any reason. You can however, apply a semi-tethered patch once the device is jailbroken which will help you to reboot your device without connecting to the Pc or Mac.
Unfortunately, iPhone 4S, iPad 2, and the new iPad users will have to wait since there is no jailbreak solution available for them. If you have mistakenly updated your device on iOS 5.1, then you really can’t do anything except repenting.
*Note: It is highly advised to upgrade to iOS 5.1 after preserving your baseband, if you rely on an carrier unlock. To preserve your baseband, open Redsn0w 0.9.10b6 select “Extras -> Custom IPSW” and locate your iOS 5.1 firmware file. Please wait and let Redsn0w 0.9.10b6 cook a custom IPSW firmware file for you. Once the custom firmware file is cooked navigate to Extras -> Pwned DFU and restore your device using iTunes.
Let’s get started with how to jailbreak iOS 5.1 on iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch 3G, and iPad 1 using Redsn0w 0.9.10b6. Before you start with this tutorial let me mention that you can jailbreak your device either using a Mac or a Windows computer. We’ve used a Mac to perform this jailbreak, however, the steps on a Windows computer will be exactly the same.
Step 1: Download iTunes 10.6 for Windows and Mac OS X.
Step 2: Once the iTunes has been installed, connect your device to the PC or Mac, and backup your device.
Step 3: Download and upgrade your firmware to iOS 5.1.
Step 4: Download Redsn0w 0.9.10b6 for Windows or Mac.
Step 5: Open the Redsn0w 0.9.10b6 and click on the “Jailbreak” button.
Step 6: Read the notice and then follow the steps accordingly, once done, click next.
Step 7: On this screen, you will be asked to put your device into DFU mode. Follow the onscreen instructions, or follow our guide on how to put your device in DFU mode.
Step 8: Next, click on Install Cydia option and press next. Your iPhone will now be rebooted and Redsn0w will begin uploading the new RAM Disk and Kernel. Once the process is completed you will be notified that Redsn0w has finished jailbreaking your device. At this point your device is only jailbroken, but you will still have to boot tethered in order to get working Cydia.
Perform Boot Tethered on iOS 5.1
Step 9: To perform a boot tethered on iOS 5.1, you first need to jailbreak your device by following the aforementioned steps. If you already have jailbroken your device simply open the Redsn0w 0.9.10b6 utility and click on Extras -> Just boot, and put your device into the DFU mode once again. Go through the onscreen steps and your device will be rebooted with working Cydia on your springboard.
Perform Semi-Tethered Jailbreak on iOS 5.1
Step 10: To perform a semi-tethered jailbreak on iOS 5.1 launch Cydia. Go to Sources -> Edit -> Add and add the following repository.
http://thebigboss.org/semitether
Now simply search for “SemiTether” and install it. Once installed reboot your device, now your device has been successfully semi-tethered jailbroken on iOS 5.1.
A big thanks to iPhone Dev Team for updating their utility and making this tutorial ever possible.
