In the old days (before iOS 4.1) iPhone needed to jailbroken and then unlocked which had many advantages as it let people do a lot more with their iPhones than what Apple allowed them to do but the Disadvantage was that it voided the warranty. Since the release of iOS 4.1 the jailbreak method didn’t work for the iPhone and for months people waited and waited got disappointed again and again as the dev team gave false dates. Then came the Gevey Sim a chinese products that came to save people who bought the upgraded unlockable iPhone or accidentally upgraded it.
The New Gevey Sim Pro is more stable, has minor bug fixes and is compatible with more networks and sims. Though the method for using the sim is the Same, you will still need to dial the 112 number (in some countries it’s a emergency number and is illegal). Gevey Sim Unlock all versions of iOS (Including 4.1, 4.2.1, 4.3.1, 4.3.2) and all Basebands (including 2.10.04, 03.10.01,04.10.01)
Click here to Know how to the Gevey Sim Works
Click here to Buy Gevey Sim Pro in India