Downgrade iPhone 4 iOS 6 Baseband 04.12.02 with Firmware Erase Method

Many our readers ask about the possibility of iOS 6 04.12.02 baseband downgrading. After keep trying to find great solution for all iPhone 4 users with 04.12.02 baseband, who want to downgrade and then unlock it with any free method, I realized that was not easy. The idea is cool but impossible to achieve. Today we will try to downgrade 04.12.02 to 04.10.01 using firmware erase method.

In case you are still using lower iOS than 6 but want to enjoy new features you can try this method to upgrade to iOS 6.1 / 6 without baseband update and still enjoy unlock and new features.

There was one method that my team had found earlier and just rewritten it. There was a “possibility” to downgrade iOS 6 baseband 04.12.02 to 04.12.01 / 01.59.00 on iPhone 4 for Gevey Sim unlock, but all users said it didn’t work.

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Fix No Service After Gevey Sim Unlock for iPhone 4 iOS 5.1.1

While we are looking for unlocking solution for 04.08.11 and 04.12.01 basebands here I’ll show you haw to unlock iPhone 4 iOS 5.1.1 using Gevey Sim for 04.10.01 and lower. Also I’ll show you the method which you can use to fix No Service.

We received many emails from our visitors that complaints on No Service issue when using Gevey Sim. They wrote that they had tried to unlock iPhone 4 iOS 5.1.1 using Gevey Sim but got No Service. And everything the developers did was unsuccessful.

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Now You Can Unlock iPhone 4S CDMA on Basebands Up to 04.10.01 With Gevey Ultra S

After Absinthe 2.0 jailbreaking tool release date were many speculations that Gevey Ultra S couldn’t unlock iPhone 4S CDMA on 04.10.01 baseband. But there is an old info because today you can unlock iPhone 4S CDMA using Gevey sim. So now you can use it and enjoy your unlocked iPhone.

You may know that this unlocking solution was developed by ApplenBerry. But after untethered jailbreak there were problems to unlock iPhone 4S CDMA on baseband 04.10.01. And today is news that Applenberry solved that problem.

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FuriousMod Tweak To Improve Gevey Functions on iOS 5

FuriousMod is a tools that helps your iPhone to work with Gevey SIM on iOS 5.0 or iOS 5.0.1. It doesn’t support any new basebands, so it’s not the baseband 04.11.08 unlock or something else method, but this tweak can make your life easier. FuriousMod works with Gevey Ultra but may be good for other Gevey cards as well and it frees you from dialing 112 every time your iPhone reboots or its battery dies (ouch). There are lots of questions of how to use FuriousMod and where to get one. Threads on FunkySpaceMonkey, JailbreakQA and modmyi give some answers on that question (MacRumors is a winner in that competition). But we decided to write this article to give you the full picture on how FuriousMod should be used.

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You Can Downgrade 04.11.08 Baseband to 04.10.01

There are many ways to unlock iPhone. Hackers from all over the world made a lot of exploits to unlock and downgrade basebands using Chinese SHSH server. However we have recently seen that Chinese hackers have some success in this. First they created Gevey Sim, now they presented the possibility to use SHSH server and downgrade 04.11.08 iPhone 4 baseband to 04.10.01. So after that you can easily unlock your iPhone 4 using Gevey sim.

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Unlock iPhone 4 using Gevey Sim Unlock on iOS 5

If you just bought a Gevey sim and not sure how to use it then this post is for you. It’s a tutorial and some useful tips on  How to unlock iPhone 4 using Gevey Sim. First of all, if you use Gevey sim and you’d like to upgrade to the newest iOS 5.0.1, do not ever perform this through iTunes, because it will upgrade your baseband and kill the unlock.

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