Apple just released the iOS 4.3.4 and iOS 4.3.9 which has patched the comex fund exploit which is the PDF exploit in Safari that is used in JailbreakMe 3.0 to jailbreak iPad 2 and other idevices running on iOS 4.3.3 which was a super hit especially for jailbreaking iPad 2.
There are lots of users who accidentally update into iOS 4.3.4 which cost them the jailbreak and no jailbreak will be possible these updates are made accidentally with the pop up message your iDevice is connected into iTunes with a message like below and once you click on the update button your firmware will be updated so if you want to stop all these popup message you can get done with the steps provided below.
iPhone Dev Team always informs all the iPhone users not to update to any of the updates that they get via iTunes until the iPhone Dev Team tests them so if you have accidentally update the iOS 4.3.4 though you can downgrade iOS 4.3.4 into iOS 4.3.3 which is provided here and jailbreak again.
How to Stop the Pop up message to update the latest iOS firmware in iTunes.
for this process please follow the steps provided below carefully
Step 1: Download iFile from Cydia Store.
Step 2: Go into System/Library/CoreServices/SystemVersion.plist and open the file in Text Viewer.
Step 3: Tap on Edit button present on top left side.
Step 4: Change 4.3.3 to 4.3.4 and 8J2 to 8K2 and tap on Save button.
Step 5: Reboot your device.
Now connect your device with iTunes and you won’t receive any update warnings.
