My phone updated and now I have no cellular service.

Hey there GgmaKennedy_4,

Thanks so much for using Apple Support Communities.

It looks like the related article at the top of this page talks about what to do if you're receiving a "Cellular" or "Ultra Wideband" issue after updating your iPhone. Is that the issue that you are encountering at this time? If so, then the steps in that article are going to be your best bet. Here is the link again in case you need it: If you see a Cellular, Ultra Wideband, or Apple Pay Issue message after an iOS update or restart - Apple Support

If that isn't what you're seeing, you may want to reply to this message with some additional information so that the community can try and help further. In the meantime, this article here has some really good information you can utilize to troubleshoot this issue: If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support

Should the issue persist after working through those articles, go ahead and contact Apple directly by clicking here: Get Support This will let you work closely with an AppleCare Advisor who can continue troubleshooting this issue with you.

We hope that this information is helpful.

​Have a great day!

GgmaKennedy_4 ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what version of iOS is it running?...

Settings > General > About > iOS Version

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