iOS 4 Features: MultiTasking, Folders, and Much More - MacRumors
Bring Your iPhone 4 Back Up to Speed with These 6 Easy Tweaks for iOS 7 « iOS & iPhone :: Gadget Hacks
iPhone 4 and iOS 8 update - YouTube
How to get iOS 9 for iPhone 4 (Older Devices) - YouTube
Apple Releases iPhone OS 4 Beta 4 and SDK to Developers - MacRumors
Facebook App Is Finally iOS 4-Compatible. Fast App Switching, High Rez Graphics | TechCrunch
Still using an iPhone 5? iOS 10.3.4 is required to keep your phone working - 9to5Mac
New lease on life or death sentence? iOS 7 on the iPhone 4 | Ars Technica
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Download iOS 4.0 for iPhone 4, 3GS, 3G and iPod touch [Final Version] | Redmond Pie
How to Update your Apple iPhone 4 / iPhone 4S from iOS 5 over WiFi (over the air) - YouTube
iPhone 4 through the ages: From 'antennagate' to iOS 7 (pictures) - CNET
First Look: Apple's iOS 4 for iPhone, iPod touch | AppleInsider
Update software - Apple iPhone 4S - iOS 8 - Device Guides
The evolution of iOS | Computerworld
Flashback: iOS 4 adds multitasking, FaceTime and other important features - GSMArena.com news
Update iPhone 4 to iOS 8 or 9 - Is this Possible?
iOS 7.1 on the iPhone 4: As good as it's going to get | Ars Technica
Farewell iPhone 4: No iOS 8 upgrade for you | ZDNET
![Download iOS 7 Final IPSW For iPhone 5, 4s, 4, iPad And iPod touch [Direct Links] | Redmond Pie](https://cdn.redmondpie.com/wp-content/uploads/2013/09/iOS-7-final-download-iPhone-iPad-iPod-touch.png "Download iOS 7 Final IPSW For iPhone 5, 4s, 4, iPad And iPod touch [Direct Links] | Redmond Pie")
Download iOS 7 Final IPSW For iPhone 5, 4s, 4, iPad And iPod touch [Direct Links] | Redmond Pie
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iOS 8.4 Available for iPhone, iPad, iPod Touch [IPSW Download Links] | OSXDaily
Update software - Apple iPhone 4 - iOS 6 - Device Guides
iPhone 4 through the ages: From 'antennagate' to iOS 7 (pictures) - CNET
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How to Update iOS Wirelessly on the iPhone
How to Update iPhone 4, 5, 5s, 6, 6+ to iOS 15 | Download iOS 15 on Old iPhone - YouTube
Full Guide on How to Update iPhone 4/4S to iOS 9
iOS 14 is available today - Apple
