I am using iPhone 3GS, my iOS is 5.1.1 and showing upgrade iOS 6.1.3, now can I upgrade my iOS through WiFi?
I am using iPhone 3GS, my iOS is 5.1.1 and showing upgrade iOS 6.1.3, now can I upgrade my iOS through WiFi?
iPhone 3GS, iOS 5.1.1, Indian
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Correct. Connect your device to your wireless network, open Settings > General > Software Update, and install the latest iOS. Make a backup before updating and connect your phone to its charger if it's necessary