Once you are able to unlock your Iphone, you would never want to let go of the state. It is important to understand that there are no free ways in which one can unlock I Phone 4 and have limitations when it comes to basebands and film wares.
In other words, it means that one cannot unlock their Iphone 3 G until the Iphone is based on the supported baseband. Such is also the case for the latest I phone launched based on the IOs 5.1 operating system.
There are many I phone users who did not understand the complexities involved in the latest I phone handset and hence went all out to upgrade their mobile software only to understand later that the consequences.
In case you buy a brand new IPhone 4, it will be equipped with the ios 5.1 version that will also make you face the same issues.
Hence they do not realize that to jailbreak the iphone it is important to first unlock the Iphone. Until that is done one cannot load free software on their handset or upgrade their phones.
Experts hold the opinion that the best way to jailbreak is by unlock the iPhone by a professional. One can take the help of iPhone repairs at iPhonefixed in case they need any type of help.
Once this is done, one can more or less upgrade the phone software and download various new features apart from the Itunes. One should abstain from these I tunes in case of a jail break or unlock the iPhone. This is because I tunes are not compatible with such kind of handsets.
Now a day all iPhone are the IOS 5.1 version that limits the career options. That means that one cannot use the same I phone to insert various kinds of Sims for different countries. However, once you happen to unlock the Iphone and get the same decoded with ease, it becomes a simple and easy process. Once done, sky is the limit for your I Phone and you can actually upgrade or use the phone for number of software downloads without any limitation.