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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 01-18-2018, 08:54   #1 (permalink)
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Downgrade iPhone 4s to iOS 6.1.3 and iOS 8.4.1

Here is the good news that firmware iOS 6.1.3 (for iPhone 4s, some types of iPad 2) is still signed by Apple. This means you can restore your iPhone 4s/iPad 2 back to iOS 6.1.3 in 3uTools immediately.


iPhone 4s, iPad 2 type 2.1/2.2/2.3.

Please note: this downgrade not available for iPad 2.4, and 3uTools would detect it automatically on Easy Flash.

Note: You are suggested to back up your important data on 3uTools before downgrading.

Check full tutorial on 3uTools
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Old 01-18-2018, 23:42   #2 (permalink)
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how to bypass icloud or activation screen ? on 6.1.3
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Old 01-19-2018, 15:44   #3 (permalink)
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Old 01-22-2018, 12:01   #4 (permalink)
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thanks for info, what is the best iOS for iphone 4s ?6.1.3 or iOS 8.4.1 ?

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