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custom ipsw 5.1.1

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Prepare Your iPhone, iPad and iPod To Jailbreak 5.1.1

Jailbreak 5.1.1 Untethered After release of the release of the latest untethered jailbreak 5.1.1 Absinthe 2.0, you may be willing to jailbreak 5.1.1 now. If you want  to upgrade your iOS from existing one to iOS 5.1.1 and you need an unlock in future, remember to NOT update through iTunes and direct from your device because it will definitely update the baseband of your device and later if you need you would not be able to unlock. Instead you should use RedSnow to preserve baseband and create custom IPSW and then use that saved ipsw to restore through iTunes. But if you got factory unlocked iPhone you never need to go through this procedure you can just update normally. Here is how you preserve baseband: Download 5.1.1 IPSW for your device from Here and download RedSnow from the This page. Run Redsn0w as administrator => Go to Extras => Custom IPSW In a new window select IPSW file which you have downloaded for iOS 5.1.1 => …

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