How can I update iOS on my iPhone?

Fakude wrote:

Yes I need to adpate ios

Assuming you have a compatible device, see: Update your iPhone, iPad, or iPod touch - Apple Support

And: If your iPhone, iPad, or iPod touch won't update - Apple Support If the above Apple articles do not help, please post back with relevant information. 

I want to know if iOS 18 can’t work on iPhone X ?

I want to know if iOS 18 can’t work on iPhone X ?

The iPhone X cannot run iOS 18.

I want to apdate my iOS on my iPhone