The Gevey Ultra S GSM SIM interposer, which allows users to unlock their iPhone 4S handset, is compatible with Apple’s recently released iOS 5.1.1.
Though a software unlock for the iPhone 4S still hasn’t been developed, hardware unlocks like Gevey SIM allow users to apply a carrier unlock to their handset quickly, easily but for a price (.99). However, while some might have worried that updating to iOS 5.1.1 would disrupt the SIM interposer, in a Twitter update p…
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Gevey Ultra S GSM Unlock Supports Apple’s iOS 5.1.1
Joe White – appadvice.com