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iOS 9.3 was released yesterday, so I wanted it on my iPhone 5s. However when I try to open Settings → General → Software Update, it pops up with a message:
Unable to Check for Update, an error occurred while checking for a software update.
I tried several things found on the internet like resetting the network settings, changing the DNS, switching to cellular network, but I am still getting the same error.
How can I download iOS 9.3 OTA?