How to fix Huawei Mate 10 Lite that keeps showing No SIM card error [Troubleshooting Guide]

Many factors can trigger networks errors to occur on your Huawei Mate 10 Lite or any other smartphones. Among the most prevalent errors is the No SIM card error. It means that your device failed to detect or recognize the SIM card. When this error occurs, other key services of your device like calling and texting will likewise become temporarily unavailable. So there’s a higher chance for you to miss some important calls and/or text messages. No one would want that to happen but then again it is inevitable. And so you’ve got no choice but to deal with the problem and start to determine the underlying cause. If ever you need some more inputs on how to get rid of the No SIM card error on your Huawei Mate 10 Lite, then you may consider the subsequent workarounds among your options. Read on to learn more.

Before we proceed, if you’re looking for a solution to a problem with your phone, try to browse through our troubleshooting pages to see if we support your device. If your phone is in the list of our supported devices, then go to the troubleshooting page and look for similar problems. Feel free to use our solutions and workarounds. Don’t worry it’s free. But if you still need our help, then fill up our Android issues questionnaire and hit submit to contact us.

First solution: Reboot your phone.

Unless the SIM card or SIM card slot is defective, the No SIM card error must be attributed to a software issue on the phone. These glitches might have prevented your phone system from detecting or reading the SIM card even when it’s properly seated. In this case, it’s likely just a random error which can be rectified by a simple reboot on your phone. This won’t affect any of your data stored on the internal memory of your phone so there’s no need to create a backup beforehand. If you haven’t restarted your phone yet, then do so with these steps:

  1. Press the Power button for a few seconds.
  2. When the Power off menu option appears, tap OK to turn your phone completely off.
  3. After 30 seconds, press and hold down the Power key until the phone turns on.

Wait until the phone completely boots up then see if the error is gone. If it’s fixed then you’re good, otherwise you will need to try some other workarounds to fix the error.

Second solution: Remove and reinstall your SIM card.

Sometimes, all you have to do to get rid of errors like this is to reseat or reinstall the SIM card. Just take the SIM card off from the phone and then place it back. Here’s how it’s exactly done:

  1. Turn your phone completely off.
  2. Insert the SIM ejector into the tiny hole on the SIM/SD card slot.
  3. Remove the SIM tray out from the slot.
  4. Remove and reseat the SIM card and SD card. Gold contacts should be facing down. Also note that this phone supports a nano SIM card so verify and ensure you are using the right SIM card type.
  5. Place the SIM card tray back into the slot. Make sure the tray is secured.

Turn your phone back on and see if that fixes the problem. If not, then move on to the next applicable solution.

Third solution: Reset your network settings.

The No SIM card error can also be attributed to invalid settings on your device. This is likely the case if you happened to make some changes to your network settings that aren’t supposed to be altered. If the error just started showing up after installing a new software update, then it’s likely the recent update is at fault. Perhaps the new update automatically overrides your settings and thus resulting to this error. To rule this out from the possible causes, you can try performing a network settings reset. This will erase all your current network settings and restore the default values. That said, you will need to set up your Wi-Fi networks on your device when the network settings reset is finished. Here’s how it’s done:

  1. Tap on the Menu icon from Home.
  2. Tap Settings.
  3. Select Advanced settings.
  4. Scroll down and tap Backup & Reset.
  5. Tap Network settings reset.
  6. Tap Network settings reset again to confirm action.

Alternatively, you can reset your Huawei Mate 10 Lite through Android recovery menu. It’s a little longer process compared to the above method but gives the same output.

Your phone automatically reboots when the reset is complete. Wait until it boots up completely then see if the error disappears. If not, then try updating your device software to the latest version available.

Fourth solution: Update software to the latest version available.

Updates can possibly fix the No SIM card error on your Huawei Mate 10 Lite if it’s triggered by a software glitch or system bug in the first place. Updates not only bring in new features but likewise offer fix patches to address existing software issues on your device. Before you implement a new software update, don’t forget to back up all your critical data for safekeeping. Here’s what you should do then:

  1. Open the Settings app.
  2. Tap System update.
  3. Tap the option to Check for updates.
  4. Wait for your phone to check for updates. Make sure it’s connected to the Internet and sufficiently charged.
  5. If a new update is available, you will be prompted with an Install software message on your screen.
  6. When you’re all set to proceed, tap the option to Install now and then follow the onscreen instructions to implement the new software update on your device.

Reboot your phone to apply the new changes on the system. If that doesn’t work either, then you may have to perform system resets.

Fifth solution: Hard reset (factory data reset).

You may consider resorting to a master reset to wipe everything out from your phone’s internal storage including bugs and software glitches that might have prevented your device from recognizing the SIM card.

  1. Tap the Menu icon from the Home screen.
  2. Tap Settings.
  3. Select Advanced Settings.
  4. Tap Backup & Reset.
  5. Scroll to and tap to select Factory data reset from the given options.
  6. Tap the option to Reset phone.
  7. Then tap Reset phone again to confirm reset.

After the reset, reboot your device if necessary so as to apply the recent changes you’ve made. If the error is gone, then the problem is fixed and you’re all set to proceed with the initial device setup to use your phone again as you normally do. Else, consider other options including problem escalation.

Other options

Contact your service provider/carrier for other further assistance and other options if all the above-mentioned procedures failed to fix the error. If you suspect that the SIM card is at fault, then you may request for a new SIM card replacement. Otherwise, take your device to a service center and for hardware assessment and/or service, if necessary.

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