I have an iPhone 4S model A1387. I want to upgrade to ios 8. I currently have ios 7.1.2 (11D257). When I try to update via iphone or itunes on my mac, the answer is "your software is up-to-date." How to upgrade to ios 8?

I have an iPhone 4S model A1387. I want to upgrade to ios 8. I currently have ios 7.1.2 (11D257). When I try to update via iphone or itunes on my mac, the answer is "your software is up-to-date." How to upgrade to ios 8? I need for a medical application that requires ios8 or above.

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Force restart your iPhone.

Press and hold the Home and Sleep/Wake buttons for at least ten seconds, until you see the Apple logo.

And then tap settings > general > software update

If this does not help, make sure that your Mac running the latest version of iTunes.

You can do this by clicking on your top  Apple left of your screen.

In the drop-down list, click: App Store

After the opening of the App Store, select updates in the upper part of the menu of the window of the App Store.

Tags: iPhone

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