I have no updates and did not try to do an update but it shows a error and I cannot call out

Hi Anamosa,

Welcome to Apple Support Communities. I understand that after restarting your iPhone you're seeing a message regarding a failed update and you're unable to make or receive calls. I can see why you'd reach out about this error message; I'd like to help. You'll want to use the information and steps below for this error:

"Cellular Update Failed

If you see this alert, there was an issue updating the cellular communication features of your iPhone or iPad. Your iPhone can't make or receive calls or text messages or access cellular data.

Ultra Wideband Update Failed

If you see this alert on your iPhone 11, iPhone 11 Pro, or iPhone 11 Pro Max, there was an issue updating the Ultra Wideband feature of your iPhone. Your iPhone can’t use Ultra Wideband until it has been updated.

What to do next 

Before proceeding, make sure that you have a backup of your iPhone or iPad. Then follow these steps to reinstall iOS or iPadOS:

1. 1. Connect your device to a computer. Make sure you have the latest version of macOS or iTunes. On a Mac with macOS Catalina 10.15, open Finder. On a Mac with macOS Mojave 10.14.4 or earlier, or on a PC, open iTunes.
   2. If you see a "Trust this Computer" alert, unlock your device and tap Trust.
   3. Select your device.
   4. In Finder, click General. Or in iTunes, click Summary, then follow these steps:

• • • On a Mac: Command-click Check for Update.
    • On a Windows computer: Control-click Check for Update.

Your computer will download and reinstall the current version of software on your device. Don't disconnect your device from your computer until the download completes.

If you continue to see either of the alerts above, take your iPhone or iPad to an Apple Authorized Service Provider or make a Genius Bar reservation at an Apple Store. You can also contact Apple Support."

If you see an Update Failed or Apple Pay Not Available alert after iOS update or restart

Best Regards.