With the use of Gevey SIM,iPhone 4 4.3 can be unlocked on 2.10.04/3.10.01 baseband,meaning all firmware from iOS 4.0 to iOS 4.3.Gevey SIM for unlock iPhone 4/3Gs/3G 4.3 forces the activation of the baseband using the emergency dialer.Until D-Team finds an unlock solution you can try the Gevey unlock method.In the following lines I will tell you which are the steps that you will have to follow in order to unlock iPhone 4/3Gs/3G 4.3 and a way to jailbreak iPhone 4,3Gs,3G 4.3 in few steps.

The first thing you have to do is to turn off your iPhone 4,3Gs,3G 4.3 and than insert both the SIM card and the Gevey SIM with the metal SIM tray provided.Afterwards you have to turn on your iPhone.You will firstly see a ¨no service¨message but be patient and wait until you see the signal bar appearing.The next step is to call the number 112.Once the call is connected you have to immediately hang up and than turn off the airport mode and than turn it off immediately.Finally,you will have your device unlocked after the network connection is resumed.

A big problem with this method is the fact that the number 112 can not be dialed in a lot of countries.My advice would be to wait for a software-based unlock iPhone 4/3Gs/3G 4.3. We found a company that can unlock iphone 4,3Gs,3G 4.3 with a custom software.For more information regarding the way to unlock iphone 4 4.3 with a custom software from UnlockGuide.org