Blacksn0w RC2 is an unlock tool based on geohot unlock tools combined with unlock binaries from another developer by using it on the original blacksn0w used for unlocking the iPhone 3Gs. For those who do not know, geohot is the short form of George Hot, a computer whiz kid who is famed for his exploits in understanding codes and recoding them using his own code. He is brilliant but for all intensive purposes, he has been found to go overboard on his exploits.
The original blacksn0w was designed to unlock iPhone 3GS to enable it to be used by other networks other than AT&T making it very versatile and can be used in different places as well as enabling you to choose any network you might want to use. The blacksn0w RC2 can also be used to unlock iPhone 3GS using releases and patches from geohot and the person who developed the binaries.
Why should you unlock your phone?
There are many reasons why you can go on using your iPhone as you bought it. However, at the point where you will feel you need certain software from another source or the same software, which is sold on app store and free unlock iphone in other stores, you will see the benefits of unlocking your phone. An unlocked iPhone can be used anywhere in the world with other mobile service providers and networks other than the default network.
What are the risks?
Apart from voiding your warranty, unlocking the iPhone 3GS has no other risks; even if the unlocking of the iPhone 3GS fails at first, you can always restore the iPhone to its former state by downloading its software by resetting the phone. Unblocking is however, 99% risk free and 99% certain to work. Those are good odds no, great odds.
Using blacksn0w to unlock iPhone 3GS- the tutorial
Before everything, it is vital that you back up your data by synchronizing your device with your Mac or Windows computer and using iTunes to download and save all the data in your phone from the contacts, email messages, short messages, IMs, photos and other media, which you can restore to the iPhone after the process of unlocking.
To unlock your iPhone 3GS, the first step is to go through the process of jail breaking it; which basically means stat you will be able to do things that Apple had restricted such as have access to your iPhone’s root; making it possible to customize your phone as much as you would like. To apply jailbreak on your iPhone 3GS, you need to download Sn0wbreeze 3.1.3, a jailbreak software that you use to release your phone by first resetting it to default settings and using sn0wbreeze to install the new software.
After you unlock iPhone 3GS, you will need to run the phone using the jailbreak firmware using blacksn0w on Cydia on your phone. Go to the Cydia menu and click on manage, then sources where you will select to edit and enter the address of the version of blacksn0w you are using and click on add source. After doing that, Cydia will update and unlock your phone automatically by allowing you to download blacksn0w and running it on your phone. After it completes installation, you only need to reboot your phone and from then on you can go with it anywhere in the world and use the network there to call the people home and vice versa.