As it is known to all, GEVEY SIM card unlocks iPhone 4 basebands 1.59.00 / 03:10.01 / 02.10.04 / 04.10.01 running iOS 4, iOS 4.1, 4.2, 4.2.1 and iOS 4.3 without requiring you to jailbreak your device. Applenberry has posted an official video on how to use GEVEY SIM.
For those who don’t know, basically, Turbo SIM spoofs the IMSI number and authentication key (Ki) supplied by the SIM card to the network, allowing locked phones to be used on any mobile network with which they are technically compatible. It copies the information from your AT&T SIM card and then the SIM to carrier of your choice. This allows the Turbo SIM to append on your carrier SIM, and apparently gives you full calling, SMS capabilities.
Many people find a little complicated to use it. Applenberry has posted a video showing HOW TO USE GEVEY SIM in order to unlock iPhone 4 device. Check our the video:
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