why my iphone didnt update

suley256 Said:

"why my iphone didnt update: my iPhone didn't update why ?"

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Update Using a Computer:

Apparently, you are having issues connecting the Apple's servers. So, use a computer to update, seeing if that works. Use my User Tip:  Update your iPhone Using a Computer - User Tip

Back Up First:

IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update.

Hello there!

What error message do you see when you try to update?

And see this article might help you:

If your iPhone, iPad or iPod touch won’t update

What do you see on your screen when you attempt to update your iPhone? Did you see any error messages?

Axel F.