IPhone XR Cellular Connection error: issue detected

I have an iPhone XR with iOS 18.7.9

And one minute my phone is working just fine and the next it says

cellular connection: issue detected

i tried to update software to iOS 18.7.10 and it downloads but gets stuck on “verifying update” and stayed like that for 24+ hrs. I hard to hard reset my phone. How can I get it to update.

Posted on Oct 23, 2026 5:29 AM

1 reply

WheelieNick

Level 9 (74,110 points)

Oct 23, 2026 5:58 AM in response to iheartchuko13

Hi there

Please try this

Since the cellular error is preventing your iPhone from verifying the update wirelessly, you need to use a wired connection. A computer bypasses the local on-device verification glitch by handling the firmware signature checks externally.

Connect your iPhone XR to a Mac or a Windows PC using a USB cable.
Open Finder (on Mac running macOS Catalina or later) or iTunes / Apple Devices App (on Windows).
Select your iPhone when it appears on the screen.
Click Check for Update.
If it detects the update, click Download and Update. Make sure to select Update, not "Restore," to keep your data safe.