My friend update is iPhone 6s from iOS 11 to iOS 15 it finished updating but after it asked for the passcode the phone freezes shows the buffering symbol and takes him
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Discussion] Successfully downgraded iPhone 6 to iOS 11.4! Big thanks to u/DoggoFox123 aka Mineek (sunst0rm tool). I am open for any questions! : r/jailbreak
ios 11 JailBreak Iphone 6s (URDU+HINDI) - YouTube
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All Topics — Apple iPhone 6 Plus (iOS 11)
All Topics — Apple iPhone 6S (iOS 11)
Iata cat de Greu va Merge iOS 11 pe iPhone 5S si iPhone 6 | iDevice.ro