How can I resolve mobile service and iOS update stuck on verifying?

Hello. Recently the mobile service on my phone has stopped working. I ran diagnostics in the Apple support app and it told me that an update was necessary to fix the issue. Every time that I tried to update after that, my phone gets stuck in the verifying part of the update. I’ve tried to update to iOS 18.7.1 and 26.0.1 and both times I get stuck on “Verifying update”. I have also tried to update with iTunes, where I got the error code “4000”. In the moment where I lost my mobile service, I was holding my phone, so I don’t believe it has something to do with hardware.

[Re-Titled by Moderator]

Original Title: Mobile service and iOS update issues

iPhone 13 Pro, iOS 18

Posted on Oct 4, 2025 2:03 PM

Top-ranking reply

Jeff Donald

Level 8

43,158 points

Posted on Oct 4, 2025 2:05 PM

You need to have Apple perform diagnostics on your iPhone. It can be done in person at an Apple Retail Store or at an Apple Authorized Service Provider. You can also contact Apple Support and request remote diagnostics.

If you’re in the US please call 1-800-MY-APPLE or outside the US, consult the support articles below. In Canada call 1-800-263-3394

Contact Apple for support and service - Apple Support

Genius Bar Reservation and Apple Support Options - Apple

Explore Service Locations

Official Apple Support

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5 replies

Top-ranking reply

Jeff Donald

Level 8

43,158 points

Oct 4, 2025 2:05 PM in response to szymon61

If you’re in the US please call 1-800-MY-APPLE or outside the US, consult the support articles below. In Canada call 1-800-263-3394

Contact Apple for support and service - Apple Support

Genius Bar Reservation and Apple Support Options - Apple

Explore Service Locations

Official Apple Support

Jeff Donald

Level 8

43,158 points

Oct 8, 2025 12:23 PM in response to User871

If you’re in the US please call 1-800-MY-APPLE or outside the US, consult the support articles below. In Canada call 1-800-263-3394

Contact Apple for support and service - Apple Support

Genius Bar Reservation and Apple Support Options - Apple

Explore Service Locations

Official Apple Support

Jeff Donald

Level 8

43,158 points

Oct 5, 2025 3:03 PM in response to anonymousmonkey

Yes, your mobile service provider is T-Mobile. You’ll need to contact their support team in order to resolve the issue.

User871

Level 1

8 points

Oct 8, 2025 12:15 PM in response to szymon61

I have the exakt same issue. Diagnostics tells me my network antenna is broken but I lost my network while no damage or anything similar happened to my phone. Now I have no network and the update does not work but freezes at “verify update”. My phone is about 2y old and in crisp shape..

Oct 5, 2025 2:54 PM in response to szymon61

the EXACT same thing is happened to me. what is your mobile provider? mine is t-mobile maybe related??

How can I resolve mobile service and iOS update stuck on verifying?