“How to Unlock iPhone 3G 2.2.1 with baseband 2.30.03″ is one of the most frequently ask questions in this blog. I know some of you do not intentionally upgrade to this version of firmware (Quick tip: It’s always good for you to turn off auto-upgrade in iTunes) and are searching for ways to unlock iPhone. Here I try to show you a solution for that. But, before read on, please note that this solution does not fit for all iPhone 3G.
So, is there any way to unlock iPhone 3G 2.2.1?
The answer is yes or no, depending on the version of bootloader your iPhone is running on.
It’s the baseband!
Presently, there is no easy way or software to unlock this version of firmware. To be exact, there is no unlock solution to tackle the baseband v2.30.03, which is upgraded together with firmware 2.2.1. The latest version of yellowsn0w, the iPhone 3G unlock solution, doesn’t support iPhone with baseband 2.30.03 or up.
The Possible Solution…
Thanks to the jailbreak community. iPhone developers have created a simple tool called “3G Fuzzyband Downgrader” to downgrade the baseband from 2.30.03 to 2.28.00. By downgrading the baseband, you can then use yellowsn0w to unlock the iPhone. However, there is a catch. The downgrade utility only supports iPhone with bootloader v5.8. Don’t worry if you do not know your bootloader version. The downgrader will handle the checking for you. But if you’re not using this bootloader version, I’m sorry that there is currently no software solution to unlock your iPhone 3G. You can either wait for iPhone Dev team to develop the solution or you can opt for SIM-card based unlock.
Simple Guide to Unlock iPhone 3G 2.2.1
Note: The primary goal of this guide is to help those who has accidentally upgraded to firmware 2.2.1 for iPhone 3G. If you’re using lower version of firmware and plan to upgrade, I do not recommend you to upgrade to this version. Stick with firmware 2.2 and baseband 2.28.00, for which it can be easily unlocked by yellowsn0w.
Here comes to the simple guide that shows you the step to unlock iPhone 3G 2.2.1:
1. First, follow this step-by-step guide to jailbreak your iPhone 3G with firmware 2.2.1.
2. After jailbreak, go to Cydia and download “3G Fuzzyband Downgrader”. You can check out this post for details.
3. With the baseband downgrade completes successfully, you can use yellowsn0w to unlock the iPhone 3G. The yellowsn0w can be downloaded freely via Cydia. For details, you can refer to the “Real Stuff – Unlocking iPhone 3G” section of this post.
I hope this guide can benefit those who got the iPhone locked after firmware 2.2.1 upgrade. But let me emphasize again. The above instructions can only work for iPhone 3G with bootloader 5.8. Good luck!
Share with Your FriendsWhat's Next?
If you find the post is useful, subscribe to Simon Blog using RSS or Email to get free iPhone updates. Alternatively, you can follow me on Twitter or join us on Facebook.
Related Post you'll like:- Downgrade iPhone 3G Baseband to 2.28.00 using 3G Fuzzyband Downgrader
- How To Downgrade iPhone 3.1 Baseband From 05.11.07 to 04.26.08
- Ultrasn0w is just Released to Unlock iPhone 3G on iPhone OS 3.0
- Blackra1n Will Soon Able to Unlock iPhone OS 3.1.2
- Step by Step Guide to Unlock iPhone 3G using yellowsn0w
Loading ...
{ 7 comments… read them below or add one }
Does Verizon make SIM cards? If I unlock the iphone to use with Verizon, how then do I make it work through Verizon.
I’ve recently jailbroke & unlocked 2 3G Iphones with bootloader 6.0 and baseband 2.30. I have basically taken the steps from your blog, however I was not aware of the bootloader issue at the time. So, I took a different solution for the unlock part and bought on Ebay the “2009 Gevey 3g PLUS 2″ turbo sim for $ 9.00. I was very skeptical about the turbo sim, but decided to give it a try and it worked as a charm with T-Mobile USA and a Dutch provider called Telfort (roaming in the USA via T-Mobile). Simon, thanks for all your write ups and keep up the good work !!!
p.s. Be sure that you buy an original “2009 Gevey 3g PLUS 2″ turbo sim. I heard horror stories about non-original ones, like not fitting in the sim slot or being stuck in the sim slot.
Regards,
Ronald
Hi – I have been using the 1st Gen Iphone and have unlocked the phone using Quickpwn22 from your blog. Currently I am running my iphone on 2.2 firmware. I am wanting to upgrade the iphone to 2.2.1 and keep it both unlocked and make sure there is no dataloss like contacts etc on the phone.
Is there a way to go about this?
Please suggest!!
@suzana, iPhone 3.0 has been released. So, I suggest you to follow this guide to upgrade. Just follow the instruction to backup the contacts/sms and you can restore it back after upgrade.
Hi Simon. I`d like to ask something. I have “accidentally” jailbroken my Iphone to 2.2.1 baseband 2.30.03, bootloader 5.9. Since there seems to be no unlock for it, I plan to “restore” to 3.0, update to iTunes 8.2 and from there jailbreak it once again and do the unlock. Is this the best route for me do? Any response/help will be highly appreciated. Thanks in advance.
@Rommerj, you’re right. The best way to unlock your iPhone 3G is to upgrade to iPhone 3.0 and unlock it using ultrasn0w.
I am new,and i need a help
i hav e an iphone 3g with 3.0 version but i havn,t Cydia on my phone,please would you show me step by step how to install cydia on mine
thanks