Fix iOS 27 “No Service” Problem After Updating On iPhone

Here’s how to fix iOS 27 No Service problem once you have updated your iPhone to the latest version released by Apple.

If you are facing the aforementioned problem, then fret not as we have some workarounds that you can try to get around the problem.

Toggle Airplane Mode

Simply turn off and on the Airplane mode on your phone to see if that brings signals back in action. Wait at least 30 seconds between off and on to make it effective.

Restart Your iPhone

The classic reboot. Just power down your iPhone and then power it back on to see if that triggers the signals from network.

Check Your SIM Card

If you still use physical SIM card over eSIM, take it out and put it back in, confirming it’s seated properly. If you use eSIM, delete and try to add it again. Make sure you have the means, either QR code or carrier app, to add the eSIM back in.

Reset Network Settings

Head over to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings to give this a shot. It might help fix the problem. Keep in mind that this will erase your saved Wi-Fi passwords, but not your photos or apps.

Full Reset

If none of the above has worked, you can try full erase and start over again. Make sure you backup your data to iCloud or computer before you do this. To do this, head over to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings.

Still Stuck? Talk to Apple

If none of the above has worked, it’s probably wise to book an appointment with Apple and talk to them about it.