what if i don't have a software update file in my settings?
i went to update my iphone to version ios:4.3 and i went to settings then generalandd the software update file wasn't there
iPhone 3G, iOS 4.2
An iPhone 3G can't be updated past 4.2.1. If you have a device which is capable of a newer iOS version, update it from iTunes on a computer.
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