To restore an iPhone 4S to iOS 5.1.1, you absolutely must have your SHSH blobs saved for that specific firmware version. Because Apple is no longer signing iOS 5.1.1, a standard restore through iTunes ...
If you have been an Apple fan for years and still love using older-generation iPhones or iPads, we have an important update for you. The Cupertino-based tech giant has quietly removed the ability to ...