As you know that Apple has released iOS 5GM yesterday.Also the jailbreak is available by Redsn0w and Sn0wbreeze.But this jailbreak is unfortunately is tehthered jailbreak.Here’s a guide to downgrade from iOS 5 GM to iOS 4.3.3 which have an untethred jailbreak by more than one tool, or to iOS 4.3.5.
Step 1: If you haven’t already, download the version of the iOS firmware you’re planning to downgrade to, which should be in the form of an IPSW file. For your convenience, we have placed the relevant download links below:
Step 2: Once you’ve downloaded the required IPSW file, its time you put your iPhone, iPad or iPod touch into DFU mode. The steps are as follows:
- Connect your iPhone, iPad or iPod touch to your PC or Mac.
- Turn your device off.
- Now launch iTunes.
- Hold down the Power button and the Home button simultaneously for 10 seconds.
- After 10 seconds, release the Power button but don’t let go of the Home button, your computer should detect a new USB device.
- At this point, iTunes will also recognize your device, whether its an iPhone, iPad or iPod touch.
At this point, your device’s screen should be off, if that’s so, then you’ve successfully put your device in DFU mode. If iTunes logo shows up, you’re in Recovery Mode, NOT DFU mode.
Step 3: Here comes the tricky and the most important part, you’re going to fool iTunes into thinking that its in contact with Apple’s servers, whereas we’re going to change that to Saurik’s server. In order to do this, follow the steps given below:
Navigate to C:WindowsSystem32driversetc and locate the file named as “hosts”.
Mac users can access the “hosts” file by navigating to “/etc/” folder, which can be found through Go > Go to Folder from within Finder.
If you’re on Windows, then open the “hosts” file in Notepad. If on a Mac, then open the “hosts” file in TextEdit, and add the following line at the end:
Refer to the screenshot below if you’re having confusion:
Step 4: Launch iTunes, select your device from the program’s sidebar and restore your device to the old firmware you’ve selected earlier. In order to do this, hold the Alt key (if you’re using OS X) or Shift (if you’re on Windows) on your keyboard, press the "Restore" button on iTunes and navigate to the desired firmware file.
Note: You might get a 1013 error during this process, which is entirely normal, throwing your device into recovery mode.