Now that Redsn0w 0.9.6rc9 finally provides the long awaited iOS 4.3.1 untethered jailbreak, many iPhone 4 owners with unlocked iPhones’ have been advised to hold off upgrading to 4.3.1 as you will lose the ability to unlock, since the newer firmware will update your baseband.
Furthermore, as we’ve mentioned earlier this morning, the new iOS 4.3.1 firmware currently is incompatible with the Dev Team’s ultrasn0w unlock tool. It is recommended that you wait for the Dev Team to update this tool before upgrading and jailbreaking.
But for those anxious to update to the new iOS 4.3.1 firmware and still preserve their iPhone 4 1.59.00 baseband so they can be guaranteed an unlock when the Dev Team updates their ultrasn0w tool, follow our tutorial below. Read More
















