How can I update iOS using 5G

If you are asking about the iPhone 7 Plus in your profile, this version of the iPhone is not compatible with 5G. You will have to update using Wi-Fi, or by connecting the iPhone 7 Plus to a Mac or PC using a cable.

Your stats say you have an iPhone 7. If this is true, you don't have 5G.

If you have a different phone with 5G, go to Settings > General > Software Update. If there is an update available, you will see it there.

TAMU Oh Said:

"How can I update iOS using 5G: iphone"

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Updating an iPhone Using 5G:

This is not an option for an iPhone 7 Plus.

Use my User Tip: Use an iPhone 12 or later, that is using 5G, in order to update over Cellular - User Tip