How to Unlock iPhone 4

iPhone 4, available both in Black and White colors has 8 GB flash drive and weighs just 4.8 ounces. If your iPhone 4 is locked, you might know that there are two ways to unlock locked cellphones, as is the case with iPhone 4- hardware unlocking method and software unlocking method. The hardware method is old and now obsolete as it was too expensive. To use the software unlocking method, you could Jailbreak iPhone 4S to make use a lot more applications from other markets if the software of unlocking iPhone is not available at a good price in the iPhone market. iPhone 4 can be unlocked by using free unlocking programs and software tools. One of software tool that can be used to unlock iPhone 4 is a program called redsn0w.