Why can't I download iOS 6.1.3
I have a new iPhone, in the settings there is a message saying to download iOS 6.3 1 from a wi fi ??f
iPhone 5, iOS 6.1.3
In order to do the update you will need to be connected to an Wi-Fi network. Or you can connect your iPhone to your computer and launch iTunes to update. Take a look at this link, http://support.apple.com/kb/ht4623