How to update iPhone X with cellular

Unfortunately, it is not possible to update iOS on the iPhone X via Cellular Data.

iOS updates via Cellular require 5G, and this requires an iPhone 12 or later. If you are unable to update via Wi-Fi, you can update from a computer.

If you want to update your iPhone via a PC or Mac, see here:

• Mac: Update your iPhone, iPad, or iPod touch with the Finder - Apple Support

• PC (iTunes): Update your iPhone, iPad, or iPod touch with iTunes - Apple Support

You can find more useful information here:

Update your iPhone or iPad - Apple Support

If your iPhone or iPad won't update – Apple Support (UK)