How do I upgrade my iPhone X from iOS 16 to iOS 18?

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Level 1

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How to upgrade my iPhone X from OS16 to OS18

[Re-Titled by Moderator]

Original Title: Upgrade my iPhone x

iPhone X, iOS 16

Posted on Feb 22, 2026 9:43 AM

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Answer 1

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Level 10

193,212 points

The iPhone X....introduced in November 2017.....is not compatible with iOS 18.

iOS 16 is the best that the iPhone X can do.

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Answer 2

You do not upgrade your iPhone X from iOS 16 to iOS 17, 18, or 26, because you cannot.

For the iPhone X, iOS 16 is the end of the line.

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