Hot answers tagged iphone-4
You can back up to iTunes on your Mac or PC desktop or laptop directly over USB. Connect the device over USB to iTunes, select your device in the toolbar and click Back Up Now.
Sorry but iOS 9 isn't supported on iPhone 4. As you can see at the bottom of this page, the oldest supported iPhone is the iPhone 4s. http://www.apple.com/ios/whats-new/ iOS 8 isn't even available for iPhone 4. As you can see here. https://en.wikipedia.org/wiki/iOS_8#Supported_devices The last supported OS is iOS 7.
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