How to get warranty on apple products?

I have just got a new Iphone and I bought it unlocked. What do I have to do to get warranty on my new device.

You have to call them and put it up there. Its 100 dollars

Its active as soon as you register the device during intial set up.

To view the warranty, tap on settings, general, about, legal, then warranty. Then tap on the hyperlink provided to view the details.

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