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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 4 / iPhone 4S

iPhone 4 / iPhone 4S iPhone 4 / 4S

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Old 11-20-2010, 15:39   #1 (permalink)
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Downgrade iOS 4.2.1 to iOS 4.1/4.0.2 / 4.0.1 on iPhone 4,3GS,3G iPod Touch


It was possible that you have the curiosity to experiment iOS 4.2.1 GM new features which was releasedyesterday to iPhone 4, 3GS, 3G, iPod touch 4G, 3G, 2G and iPad, if you still didn't, you can download and jailbreak it now from here. You will note that Cydia still have some issues, the matter which make jailbreak pointless for many.

Moreover the new iOS 4.2.1 GM build has a new baseband version which puts a lot of doubts around the upcoming unlock. Therefore I prepared the downgrade guide from iOS 4.2.1 GM to iOS 4.1, 4.0.2, 4.0.1 or lower.



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