Hardware unlock for iPhone 4S was released last month by some major hardware unlock makers in the form of Gevey SIM, TP SIM and R-SIM. Though all of these hardware unlocking solution worked perfectly with iPhone 4S but Sprint and Verizon users were not able to unlock their iPhone 4S to use it on GSM network. There was a workaround which allowed users to unlock their Verizon iPhone 4S to use it on other GSM carriers like T-Mobile. TP SIM developers were the first one to release iPhone 4S unlock last month were also the first one to unlock Verizon iPhone 4S, they released a proper unlock for Verizon iPhone 4S almost two weeks ago. Gevey has also joined the group now, they just released their Verizon and Sprint iPhone 4S unlocking solution.
Gevey Ultra S CDMA interposer SIM promises to free your Sprint and Verizon iPhone 4S from their carrier’s contract program so that you can use it on other networks. Though TP SIM also gives you the ability to unlock CDMA iPhone 4S but TP SIM is only limited for Verizon iPhone 4S while Gevey Ultra S SIM for CDMA works on Sprint iPhone 4S as well. If you ask what is the difference between Gevey Ultra S which was released for iPhone 4S and this new version of Gevey unlock; previous version of Gevey SIM didn’t support Verizon and Sprint iPhone 4S. This new unlock works for GSM and CDMA iPhone.
Gevey Ultra S for CDMA will support following basebands on Sprint and Verizon iPhone 4S:
You will need to jailbreak your iPhone if you’re planning to unlock your Sprint and Verizon iPhone 4S because this new SIM will use furiousmod to unlock your device. If you have a GSM iPhone 4S then you don’t need to jailbreak your device to unlock it you can simply put in the SIM and start using your iPhone.
It is important to note here that Apple has introduced a new baseband for iPhone 4S in iOS 5.1. Gevey Ultra S CDMA/GSM SIM will not work on iOS 5.1 so it is highly recommended that you should stay away from iOS 5.1 update.
Gevey Ultra S for CDMA/GSM iPhone 4S is available for pre-order on ApplenBerry’s official website. This unlocking solution will cost your $60 without shipping.
IMPORTANT: Again, this SIM will not work if your iPhone 4S is running iOS 5.1.