Preserve Baseband on iPhone 4 during iOS 5 Upgrade – Windows Users

Snowbreeze 2.8 beta 8 can be used to upgrade your iPhone 4 to iOS 5 firmware without changing the original baseband . Baseband preservation is required for those using Gevey Sim and Ultrasn0w Unlock . Gevey Sim users must preserve their original baseband of 04.10.01 and Ultrasnow users must preserve baseband to 01.59.00 . Note […]

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