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How to fix No service error on your iPhone 8, calls and SMS not working [Troubleshooting Guide]

Network problems in mobile devices are mostly related to software errors, which therefore denotes they’re are rectifiable by some workarounds. This post highlights some recommended workarounds and generic solutions to a pertinent issue affecting the iPhone 8 smartphone. Read further to find out how to troubleshoot and fix an iPhone 8 that’s prompting No service error and cannot make or receive SMS messages and phone calls.

Before going further, if you found this post because you were trying to find a solution to your problem, then try to visit our troubleshooting page as we’ve already addressed most of the commonly reported issues with the phone. We’ve already provided solutions to some of the problems reported by our readers so try to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you and if you need further assistance, fill up our Android issues questionnaire and hit submit.

How to troubleshoot iPhone 8 with No Service issue

Before you troubleshoot software problems on your iPhone 8, check and ensure that there are no ongoing network outages in your area. If all your devices are experiencing the same problem, then that’s likely due to an outage. But if the No service error only occurs on your iPhone 8, try to remove and reseat the SIM card. It’s possible that your SIM card is loose or dislodged from the SIM card tray. Before you remove the SIM card though, turn your iPhone off completely to prevent damaging the phone. Use the original SIM tray ejector or a small paperclip to pop the SIM card tray out. If the No service error persists after reinstalling the SIM card on your iPhone 8, then try these methods to rule out software problems from the underlying causes.

First solution: Soft reset/reboot your iPhone 8.

Start from the simplest effective solution to minor software errors and that is to reboot or soft reset your iPhone 8. This dumps errant cache from the internal memory and clears random errors from apps and iOS, without affecting any saved information from the phone. Here’s how it’s done:

  1. Press and hold the Power/Side button for a few seconds until the Slide to Power Off button appears.
  2. Drag the power off slider to the right to shut the phone down.
  3. After 30 seconds, press and hold the Power/Side button and then release when the Apple logo appears.

Allow your iPhone to finish restarting and then see if that clears the No service error as well.

Second solution: Update to the latest iOS version.

Software updates usually contain bug fixes to deal with random errors caused by software bugs and malware. If you haven’t yet updated your iPhone software, check for any available OTA update to install. Before updating though, make sure your iPhone is connected to the Internet via Wi-Fi, has ample of storage space, and at least 50 percent of battery life. Whenever you’re all set, follow these steps to check for over-the-air (OTA) update to download and install on your iPhone 8:

  1. Open the Settings app.
  2. Tap General.
  3. Tap Software Update. You will see a notification if an update is available.
  4. Tap Download and Install if you want to update your iPhone now.
  5. Then follow the rest of the onscreen instructions to implement the new iOS update on your device.

Don’t forget to restart your iPhone (soft reset) after the update is implemented. This is recommended to ensure that all new system changes are properly applied and likewise to prevent apps from going rogue.

If you cannot update wirelessly, then you can update your iPhone 8 through iTunes on a computer.

Third solution: Reset network settings on your iPhone 8.

No service errors can also be attributed to invalid network settings on the phone. If it occurs after modifying your network settings, then that’s likely the cause. To clear out such errors, performing a reset on the iPhone’s network settings can potentially fix them. Here’s how it’s done:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select Reset Network Settings from the given options.
  5. If prompted, enter your device passcode to continue.
  6. Then tap Reset Network Settings again to confirm.

Your iPhone will reboot by itself as soon as it’s finished resetting the network. After it reboots, the default network settings will be restored. Reconnect to your Wi-Fi network and configure other network options accordingly.

Fourth solution: Factory reset/master reset your iPhone 8.

A factory reset or master reset can be considered among the last options to try if the No service error persists and network-related functions particularly calling and texting are still not working on your iPhone. This will wipe everything from your iPhone system including complicated system errors or data corruption that may have afflicted the network functions. If you wish to proceed, back up all your important files for safekeeping. Then follow these steps to erase and reset your iPhone to factory defaults:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select Erase all content and settings from the given options.
  5. If prompted, enter your device passcode to continue.
  6. Then tap the option to confirm and instigate a master reset.

Wait for your iPhone to finish erasing your device and then reboots by itself. After it reboots, follow the setup wizard to set up your iPhone as new and ready for use.

Fifth solution: Restore your iPhone 8 through iTunes.

If a factory reset failed to solve the problem and your iPhone 8 still shows the same No service error, then you can further troubleshoot more complex errors on the network system. At this point, try performing a recovery mode restore through iTunes. This will put your device in a recovery state and restore iOS in iTunes. To get this done, you will need to secure a Windows PC or Mac computer that runs a later or latest platform and has the latest version of iTunes software installed. Once you have the equipment ready, follow these steps to perform a recovery mode restore:

  1. Connect your iPhone to the computer using the supplied USB cable or original Lightning cable.
  2. With your iPhone connected, quickly press and release the Volume Up button, then press and release the Volume Down button and finally, press and hold the Side/Power button until the phone reboots. Continue holding the Side/Power button even when you see the Apple logo.
  3. Release the Side/Power button once you see the Connect to iTunes screen.
  4. Go to iTunes and you should see a message saying that “There is a problem with the iPhone that requires it to be updated or restored.”
  5. Select the option to Restore, then follow the onscreen instructions to complete the entire iOS restore process in recovery mode.

Most software-related issues from major system errors are remedied by a recovery mode restore. That said, the No Service error should already be gone at this point unless a faulty hardware is to blame.

Seek more help

Report the issue to your network service provider or carrier if your iPhone 8 still shows a No Service error and unable to process calls and text messages. Verify your account and service status and make sure that they’re active. You can also request for a new SIM card replacement if you think that the problem is due to a bad SIM card.

Or you can also take your device to an Apple-authorized service center if you suspect that the problem is attributed to a damaged network component.

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If you need more help with the use of certain functions and features of the Apple iPhone 8 smartphone, feel free to visit our Tutorial Page. There you can find a list of how-to contents, step-by-step tutorials, as well as answers to FAQs regarding iPhone 8. If you have other concerns or encountered some troubles while using the phone, you can reach us through this form. Just be sure to tell us more details of the problem or device issue(s) you may have and we will be more than happy to assist you further.

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