This Apple iPhone is the most popular unlock iphone 3gs 4.3.5 now a days. There are lots of people who are using this kind of iPhone, which is very handy to use, and it has lots of features styles that will surely suits for your lifestyles. This iphone is a very well known of its capacity and its quality. You need to unlock your iphone so that you can use the 3G with the other cellular carrier. You iphone is required to use the iTunes program that Apple designed, it is for the syncing with your iPhone so that you can unlock your iphone for free.
How to unlock an OTB 3G iPhone or iphone 4 unlock? Well, the first step to do, is to download the 2.2 iPhone, it's an operating systems firmware that is required for your iPhone to be unlock. If you are currently downloading this 2.2 iPhone, after downloading it, the process of unlocking your 3G phone is very easy. All you have to do is just simply follow its installation steps then you can unlock an OTB 3G iPhone, right away.