Currently, his iPhone 4 is running iOS 4.2.1 with baseband version 2.10.01 and he’s pretty much concern if iOS 5 comes with a new baseband that can be unlocked with Gevey.
Well, this is serious question if you’re after of the iPhone unlock so I decided to publish this as a blog post, of course for the benefit also of those unlockers drooling for iOS 5 features yet being held by the fact that they can’t just upgrade to the latest firmware.
To answer the question, YES… iOS 5 comes with a new baseband version which is 04.11.08 for the GSM-based iPhone 4, iPhone 4S, and iPad 2. iPhone 3GS upgraded to iOS 5 will also have a new baseband (05.16.05) as well as the first gen iPad (7.11.01).
And as for the second concern whether the Gevey SIM can unlock this new baseband which comes with iOS 5 (4.11.08 to be specific for iPhone 4) – the answer is NO, at least for the time being. That being said, I personally advise you NOT upgrading to stock iOS 5 firmware through iTunes if you really care for the unlock.
But, that doesn’t mean you can’t get iOS 5. There’s actually a workaround (courtesy of the new versions of the Redsn0w and Sn0wbreeze jailbreak tools) which allows you to create a custom iOS 5 firmware and would preserve your current baseband; however, I will just cover it on a separate article.