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How to fix iPhone showing ‘no service’ with iOS 15

iOS 15 has been having connectivity issues with its radio switches. Users have had problems with WiFi connectivity, Bluetooth connectivity, and with network signals. Users may see full signal bars but the ‘No Service’ message in the status bar indicates that there is no network connectivity. This prevents users from making calls and using 3G/4G/5G.

iphone 13

Fix iPhone showing ‘no service’ with iOS 15

If you’re not getting any signals on your phone, and the no service message is visible in the status bar after you’ve updated to iOS 15, it’s a somewhat common bug. Here are a few things you can try to fix it however, make sure you’ve backed your phone up first. 

1. Restart your phone

If you have a problem with network signals, you should always try restarting your phone first. 

  1. Press the volume up and then the volume down button.
  2. Press and hold the sleep/wake button.
  3. Slide the power slider off.
  4. Press the sleep/wake button to turn the phone back on.

2. Restart phone in Airplane mode

If restarting the phone doesn’t fix the problem, put it in airplane mode and then restart it.

  1. Swipe down from the top right corner to open the Control Center.
  2. Tap the Airplane mode toggle.
  3. Press the volume up and then the volume down button.
  4. Press and hold the sleep/wake button.
  5. Slide the power slider off.
  6. Press the sleep/wake button to turn the phone back on.
  7. Swipe down from the top right to open the Control Center.
  8. Turn Airplane mode Off.

3. Call your network provider

In some countries, and with certain network providers, when a phone’s firmware is updated the network needs to push new settings to the device. It should happen automatically but you can call the network provider and they can help you with the settings. The network settings will be pushed to your number and you will likely need to restart the phone after importing them.

4. Reset network settings

Try resetting the network settings. It won’t result in any data loss but you will need to connect to WiFi networks again (add the password again).

  1. Open the Settings app.
  2. Go to General>Transfer or Reset iPhone>Reset.
  3. Select Reset Network Settings.

5. Reinsert SIM card

Remove the SIM card from the SIM tray and reinsert it. You can use the SIM key if you still have it or use a pin.

  1. Turn your phone off.
  2. Eject the SIM tray.
  3. Remove the SIM.
  4. Insert the SIM tray and turn your phone on.
  5. Wait a few minutes (connect to WiFi network).
  6. Turn the phone off again.
  7. Eject the SIM tray and insert the SIM card.
  8. Insert the SIM tray and turn the phone back on.

Conclusion

Signal problems and connectivity issues aren’t new to the iPhone or to iOS. A few versions ago, back when Apple introduced the new iPhone 6 with the strip design, it interfered with signals. An iOS update is what fixed it. If you have a pending iOS 15 update to install, you should install it. As of now, iOS 15.1 is available. 

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