Are you interested in How to Unlock iPhone 4 4.2.1 version? There are many step by step guides with jailbreak instructions that are outdated and don’t include unlocking iphone 4 on 4.2.1. Be careful of jailbreak websites that don’t have a good reputation, or the “cheap iphone unlock” might not end up so cheap if you brick your iPhone 4 device. We offer valuable information and recommended sources that we have personally dealt with on how to unlock iphone 4 4.2.1…
If you have been keenly following the developments concerning unlocking of iPhones, then you probably know by now that there exits many different methods of unlocking these gadgets. The choice of method largely depends mainly on iOS that your device is running on and the version of its baseband. For clarity purposes, this article will examine the baseband options that you have when you want to unlock iPhone 4 4.2.1 while taking into account use of the Gevey SIM in achieving this goal.
Currently, iOS 5 is the latest firmware for iPhone. However, not everyone has upgraded to this platform, some by choice and others being forced not to upgrade due to unlock limitations. On the contrary, iphone users who are wondering how to unlock iphone 4 4.2 have the option as well.
Does iOS 5 have a Baseband Version for Unlock iPhone 4 4.2.1
If you are using the Gevey SIM and running unlock iPhone 4 4.2.1, you have at one time or the other had concerns with this matter. In fact, many people are afraid to upgrade to the new firmware because they aren’t sure if such a move would guarantee them a baseband version for unlocking their devices using the Gevey SIM. Well, you do not need to worry about this because there is actually a baseband version to facilitate this.
iOS 5 has various baseband versions for the different devices to enable your Unlock iPhone 4 4.2.1, and they include the following:
- Baseband version 04.11.08 that is used with iPhone 4s including the GSM-based ones and iPad 2.
- Baseband version 05.16.05 for iPhone 3GS
- Baseband Version 7.11.01 that is specifically for iPads first generation type.
Therefore, if you upgrade to iOS 5, those are the baseband options for you to have. In our case (unlock iPhone 4 4.2.1), our interest is the 04.11.08 baseband. So, based on that, you can proceed with your upgrading on the locked iphone 4 device.
Can Gevey SIM Unlock iPhone 4 4.2.1 when it’s Upgraded to the New Baseband Version?
Now that you know that there is a compatible baseband version for your iPhone 4 device, your next concern is whether the SIM that you are using can still unlock the device should you decide to upgrade to iOS 5. Well, unfortunately, this is not possible for now, and as such, that limits you from upgrading to the new iphone firmware.e
How to Work Your Way Round the new Baseband Version of iOS 5 to Unlock iPhone 4 4.2.1
The fact that Gevey SIM cannot unlock baseband version 4.11.08 of iOS 5 does not spell doom for you and mean that you can’t upgrade to iOS 5. You can go ahead with the upgrade and Unlock iPhone 4 4.2.1, but to unlock your device, you will be required to use SnOwbreeze and RedsnOw jailbreak features/tools. What these tools do is that they simply enable you to make a custom firmware for iOS 5. However, it is important to remember that with this method, you will be required to preserve the existing baseband version for your unlock iPhone 4 4.2.1.
The procedure won’t be covered here, but for you to succeed with the same, you will have to download the three firmware, that is iOS 5, RedsnOw (specifically 0.9.9b5) and iTunes 10.5. Remember that these are the latest versions of both the RedsnOw and iTunes and you are downloading these because they are the firmware that have the tools that you need to facilitate your unlock. There are both Windows versions and Mac OS X versions for the firmware, so choose your download appropriately depending on the platform on which you are running. With that, you are now ready to upgrade to the new iOS 5 and still be able to perform your Sim Unlock iPhone 4 4.2.1. But watch out for any other new developments that might pop up.
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