As reported, just recently, Apple has released the new iOS 4.3.5, which is a new iOS update that brings an update that fixes a security issue with certificate validation. But, if after upgrading to the new iOS 4.3.5 version, due to any reason, you want to downgrade back to the earlier iOS versions, then, you can do so, but if you have saved the SHSH blob of that downgrading iOS firmware. Here’s presenting you the step by step guidelines posted on how to downgrade the new iOS 4.3.5 to 4.3.4, 4.3.3, 4.3.2, 4.3 on iPhone 4, 3GS, iPad and iPod touch.
Here’s an important point to be noted that this guideline won’t be applied to the 3G iPad 2 users. Actually, this is due to the reason that downgrading the baseband on 3G iPad 2 isn’t possible yet. So, if you have a 3G iPad 2 and you have upgraded to the new iOS 4.3.5 firmware, then, you are really out of luck.
How To Downgrade iOS 4.3.5 To 4.3.4, 4.3.3, 4.3.2, 4.3 On iPhone 4, 3GS, iPad, iPod Touch
Step – 1 : First of all, download the firmware file you want to downgrade to.
Step – 2 : Then, just enter your iOS device into DFU mode by following the on-screen instructions;
- First of all, hold down “Power” button for 5 seconds.
- Then, without releasing the “Power” button, just hold the “Home” button simultaneously with the “Power” button for 10 seconds.
- Now, release the “Power” button, but continue holding the “Home” button for another 15 seconds.
Step – 3 : After entering into DFU mode, you require to trick iTunes into connecting to Saurik’s server instead of Apple’s servers. In order to perform this, all you have to do is that edit your hosts file, as shown in the screenshot below.
For Windows users : Simply navigate to WindowsSystem32driversetc and locate the file name hosts. Just back it up and open it in Notepad.
For Mac OS X users : Well, from Mac OS X Finder, just hit the Go menu, choose Go To Folder and type in /etc/. After that, search for a file name, called, hosts. Then, just back it up and open it in TextEdit.
After completed the above, just add the following line to the hosts file, and save it. Be sure you have administrative privileges;
Step – 4 : After that, start iTunes, and select your iOS device from the sidebar and click on Restore while holding “ALT”, if you are on the Mac and shift if you are on Windows. If everything goes good, then, you should be able to select the firmware file you would like to downgrade to. After completed, your iOS device should be downgraded quickly.
NOTE : Well, there will be a 1013 error, just ignore that.
Well, the above mentioned iTunes error will take your iOS device into Recovery mode, and in order to return into the standard mode, all you need to do is just download two utilities, such as, TinyUmbrella (Windows, Mac) and Fix Recovery (Windows, Mac). Launch it and select Exit Recovery.
After completed, your iOS device should work normally. Last but not the least, if you would like to receive future updates from Apple’s servers: restore the hosts file you’ve backed up earlier to its original location.
That’s it! You have done it!
Well, if you’ll have any issues while going through the above steps, then, don’t hesitate, just write to us in our comment section below. Also, if you are successful in performing the above, then, just don’t forget to share your views and comments on this with us.