iPhone | How to Jailbreak Your iPhone Without Updating the Baseband (Mac) [5.0.1]

These are instructions on how to jailbreak your iPhone 3GS or iPhone 4 on iOS 5.0.1 without updating the baseband using RedSn0w for Mac. You may want to do this to preserve an unlock from a lower baseband version. Please note this jailbreak is tethered for every device but the old bootrom iPhone 3GS which means you will need to connect your device to the computer each time you reboot. Also, it may be prudent to save your SHSH Blobs by following this tutorial before continuing if you haven't already. If you want to jailbreak a lower firmware version you can find the appropriate tutorial here. Step One Create a folder on your desktop called Pwnage Download RedSn0w 0.9.9b9d or higher from here and place it in the Pwnage folder. Likewise, download the 5.0.1 firmware from here and place it in the Pwnage folder. Extract the RedSn0w zip file by double clicking it. Step Two Launch the redsn0w application from the redsn0w folder we just extracted. Step Three Click to select Extras from the main menu. Step Four Click to select Custom IPSW from the Extras menu. Step Five Navigate to the Pwnage folder on your desktop and select the IPSW we downloaded then click Open. If you are using the iPhone 3GS you may be asked to identify whether you are on a newer or older model. Step Six RedSn0w will now begin building a custom IPSW for you. Step Seven You'll be notified once RedSn0w has completed building your IPSW. Click the OK button. Step Eight Click the Pwned DFU button from the Extras menu. Step Nine Plug your iPhone into the computer and make sure its OFF then click the Next button Step Ten RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here Hold down both the Home button and the Power button for 10 seconds. Release the Power button and continue holding the Home button until RedSn0w detects the device. Step Eleven RedSn0w will run the LimeRa1n exploit. Step Twelve You'll then be notified that your iPhone is in Pwned DFU mode. Step Thirteen Launch iTunes by clicking its icon in your dock. Step Fourteen Select your device from the list on the left then under the Summary tab hold down the Option key and click the Restore button. Step Fifteen You will then be asked to select your IPSW for restore. Navigate to the Pwnage folder on your desktop and select the IPSW that begins with NO_BB then click the Open button. Step Sixteen iTunes will now restore and jailbreak your device using the Custom IPSW. JAILBREAK AND INSTALL CYDIA Follow these instructions to jailbreak your device on the new iOS 5.0.1 firmware. - iPhone 4 - iPhone 3GS BOOT TETHERED Once you have jailbroken you will need to rerun redsn0w to boot tethered. Step One From the main RedSn0w menu click the Extras button. Step Two Select Just boot from the Extras menu to just boot tethered. UNLOCK: If you have a supported baseband you can now install UltraSn0w to unlock your device. Instructions are here. *As usual a big thanks to the iPhone Dev-Team and Geohot for their hard work and contribution to the iPhone community.

Apple News | Update on the Untethered Jailbreak for the iPhone 4S

Monday, 19th December 2011, 03:12 pm
Pod2g has issued an update on the progress of the untethered jailbreak for the iPhone 4S. For those who haven't been tracking his progress, last week pod2g successfully untethered the iPhone 4, iPhone 3GS, iPod 4G, iPod 3G, iPad 1, and Apple TV 2 (4.4.3). He has now turned his attention to the iPhone 4S and the iPad 2. Here are the news of the 4S week-end. The untether fails right now because I'm having processor cache issues. I'm close, but I can't figure out what happens. It certainly has something to do with the Cortex-A9 cache management. I could sort it out quick, it's a matter of chance. I'll report you my progress tomorrow. As usual we will keep you up to date with the latest. You can follow us via Twitter, Facebook, or RSS.