A No SIM card error in mobile devices is usually associated with software problems if not due to a faulty SIM card or hardware damage like damaged SIM card tray and relevant components on the device. This can happen to both old and new devices regardless of brand and operating system. In this context, I will tackle a No SIM card error that’s transpiring on the Nokia 7 handset. Read on to find out what to do if ever you’ll bump into the same scenario wherein all of a sudden both texting and calling functions are not working on your Nokia 7 because No SIM card is detected.
Start whenever you’re all set to troubleshoot software problems that might have triggered the No SIM card error and halted the basic yet most important network features of your smartphone.
For smartphone owners who found our site while trying to find a solution, try to see if your phone is one of the devices we support. If it is, then visit the troubleshooting page for that device, browse through it to find issues that are similar with yours and feel free to use our solutions and workarounds. However, if you still need our help after that, then fill up our Android issues questionnaire and hit submit to contact us.
First solution: Reboot your phone (soft reset).
Random glitches can cause certain errors to occur on your phone. The SIM card reader or software responsible for reading the SIM card might be experiencing minor issues that resulted to this error. To fix minor issues like this, simply restart your phone or perform a soft reset with these steps:
- Press the Power button for a few seconds until the menu options appear.
- Select the option to Power off then tap OK. Your phone will then shut down.
- After 30 seconds, press the Power button again until your phone turns on.
Alternatively, you can do a soft reset using the hardware keys. This is an alternative method to restart your phone if it freezes when the error occurs. Here’s how it’s done:
- Simultaneously press and hold the Volume Up button and Power button for a few seconds or until your device power cycles.
Should the No SIM card error is tied to a minor software issue, a soft reset will most likely be able to deal with it. Otherwise, you’ll have to troubleshoot further.
Second solution: Remove and reinstall the SIM card.
The Nokia 7 has a single tray used for both the SIM card and memory card. To make sure the SIM card is properly seated and secured, follow these steps to remove and reinstall the SIM card and SD card on your Nokia 7:
- Turn your phone off.
- Open the SIM and memory card tray by placing the ejector tool into the hole next to the tray.
- Remove and reseat both the SIM card and SD card from the tray. Be sure to position the cards the same way as they were placed before you take them out from the tray.
- Insert the SIM and memory card tray back into place
With the tray secured, turn your phone on again and see if the No SIM card error is already gone.
Third solution: Reset network settings on your Nokia 7.
Network settings that are not configured properly can likewise result to an error like this. The easiest possible way to fix the problem in the case is to revert the network settings back to their previous configuration prior to the onset of the No SIM card error. However, there are instances when you couldn’t figure out what settings needed to be reverted and/or altered. As alternative solution, you can perform a network settings reset on your Nokia 7 instead. Just follow these steps:
- Swipe up from the bottom of the screen.
- Tap Settings.
- Scroll to and select System.
- Tap Reset.
- Select Network settings reset.
- Tap Reset Settings to confirm.
When the reset is complete, reboot your phone to apply the recent changes then configure networks on your device to use them again. See if that fixes the No SIM card error. If not, then move on to the next possible solution.
Fourth solution: Update to the latest software version.
Software updates give you access to new features, system enhancements and bug fixes. If ever the No SIM card error is triggered by some bugs, installing a new update will likely get rid of it. Here’s how to check for software update on your Nokia 7:
- Slide up from the bottom of the Home screen.
- Scroll to and select Settings.
- Scroll to and tap About phone.
- Select System updates.
- Then tap on the option to Check for update.
Wait for your device to search for update. You’ll see an update notification if a new software version is available for your device. Otherwise, it says that your system is up to date.
Fifth solution: Restore your device to its factory defaults.
You could be dealing with a more complex system error, which may require tougher solutions like a full system reset and restore for the No SIM card error to be obliterated. A factory reset could be regarded as the last option if you’ve reached this point with the same error message on your phone screen. You can restore your Nokia 7 to its factory defaults through the settings reset menu. Here’s how:
- Swipe up from the bottom of the Home screen.
- Tap Settings.
- Tap Backup & Reset.
- Tap Factory Data Reset.
- Tap Reset Device.
- If prompted, enter your credentials to continue.
- Finally, tap Erase Everything
Wait until the reset is finished and your phone reboots. By then you may proceed with the initial setup through the setup wizard. See if that fixes the error. Otherwise, perform a factory data reset on your Nokia 7 through Android recovery mode.
Seek further assistance
Contact your carrier to escalate the problem if it persists after performing all the aforementioned workarounds. There might be some more intricate system issues that need to be dealt with for the error to disappear. This should be a must-do if the error started after installing a new software update on your device. It could be an update bug that requires a fix patch.
If necessary, you may also request a new SIM card replacement. It is possible that your SIM card is damaged so your Nokia 7 just couldn’t detect the SIM card even when it’s properly installed. To further assess whether or not your phone has obtained hardware damage, take it to a service center and have it diagnosed by a technician for any visible signs of physical or liquid damage instead.
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