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Apple - CSMonitor.com
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still use iPhone 4 in 2022. : r/mildlyinfuriating
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Software Updates Are Important - The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition [Book]
Update iPhone 4 to iOS 8 or 9 - Is this Possible?
Apple upgrades iPhone 4 hardware, not aesthetics - Daily Forty-Niner
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iPhone 4.1 Software Update Doesn't Fix “Death Grip”: True Fix Coming F
