How to fix a Samsung Galaxy A8 2019 that is showing No SIM card error (easy steps)

Errors like No Signal, No Service, and No SIM card are tagged among other network-related issues in Android devices. These errors are inevitable as the underlying cause may not just be on your end but likewise on your network service provider. Adverse symptoms would include unable to send and receive calls and text messages on your device. This therefore denotes the need for you to promptly do something in order to fix the problem as soon as possible. Otherwise, you’ll be missing some important calls and text messages.

This post highlights potential solutions and workarounds you can use if ever you will need to deal with a relevant error, particularly a No SIM card error on your Samsung Galaxy A8 2018 handset. Keep reading 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.

Things check and do before troubleshooting

Verify and ensure that your account is in good standing and your account services are active. You may need to contact your carrier to check on these matters. In case you have recently switched to a different carrier but kept using the same phone, then you may have to contact the former carrier for a SIM unlock. Otherwise, contact your current carrier and have them reprogram the phone to enable their service.
Remove any third party accessories and cases, then restart your device. Some protective cases may not precisely be fit for your phone while others are made of materials that can interfere with the network signal reception on your device. Thus removing them might rid of the error.

Troubleshooting network problem on your Galaxy A8 2018

The following is a rundown of standard procedures and workarounds to deal with No SIM card error on your new Android phone. There is no definite fix given that the underlying cause in yet to be determined but any of these methods can offer some remedies.

Reboot your Galaxy A8 2018 (soft reset).

It is typical for smartphones to experience random network problems like a No SIM card error due to many different factors. But the good thing is that most these issues are inflicted by a software glitch, which is rectifiable by a soft reset or device restart. That said, performing a soft reset or device restart is the first recommended solution to any random software issues on the device. Here’s how to reboot/soft reset your Samsung Galaxy A8 2018:

Press the Power button for a few seconds until the power off menu appears.
Tap to Power off the phone.
Or simply press and hold the Power button until the device powers down. Wait for about 30 seconds and then press the Power button again until the device powers up.

If you’re still seeing a No SIM card error after the first restart, give it another try. Sometimes, a single restart may not be enough to rectify the software error.

Enable Airplane mode for a few seconds then disable again.

Another simple trick used by many Android phone users who have dealt with network-related errors including the No SIM card is by switching Airplane mode on and off. It turns out that doing so can somehow refresh the network system and eliminates minor flaws. It won’t hurt if you try it too and then see how it does. Here’s how to enable or disable Airplane mode on your Samsung Galaxy A8 2018:

Tap Settings from the Home screen.
Tap Airplane mode.
Then toggle the switch next to Airplane mode to turn the feature on for a few seconds and then tap to turn off again.

Reboot your phone then try to see if that fixes the error.

Remove and reinstall the SIM card on your Galaxy A8 2018.

The No SIM card error can also occur when the SIM card is dislodged or loose. This can be your phone’s way of letting you know that it’s not able to detect the SIM card even when it’s inserted simply because there is no established physical contact. To rule this out from the possibilities, you can remove and reinstall the SIM card on your device. Follow these steps to remove and reinstall SIM card on your Samsung Galaxy A8 2018:

Power off your device.
Locate the SIM card tray on the left side of the phone.
Insert the SIM eject tool into the tiny hole on the SIM card tray then press a bit for the tray to pop out. If you don’t have a SIM eject tool, you can use a small paperclip or an earring wire instead.
Carefully remove the SIM card from the tray.
Place the SIM card back into the tray. Make sure that the SIM card is properly installed and secured in the tray.
Insert the SIM card tray back into the slot and then press a bit to close the tray.
Press the Power key to turn on your phone.

Wait and see if the No SIM card error is gone.

Check for carrier settings and software updates to install.

Installing a carrier settings update or latest Android version on your phone can likewise be a potential solution especially if the error is associated with unsupported carrier settings. Meanwhile, updating the device software to the latest Android version available can be the ultimate fix especially if the error is triggered by software bug. Software updates not only offer new features but also bug fixes to address existing software problems on an Android device.

You can check for updates by going to Apps-> Settings-> System updates menu.

If there’s an available update for your device, back up your data then follow the onscreen instructions to download and install the update file.

Diagnose your phone in safe mode.

Booting into safe mode can help you determine if the problem is triggered by some third-party apps or not. All third-party apps and services are bypassed or disabled in this state. Here’s how to boot your Samsung Galaxy A8 2018 in Safe Mode:

Turn off your phone.
Press and hold down the Power key until the Samsung logo appears.
Tap Restart twice on the following menu. Doing so will reboot your phone.
While your phone is restarting, press and hold the Volume Down key for about 10 to 20 seconds.
Release the Volume Down key when the phone powers up again. You will then see Safe Mode at the bottom side of the screen and that means your device is now running in safe mode.

Check and see if the No SIM card error still shows up while in safe mode. If the error doesn’t occur in safe mode, a third-party app is the culprit and that’s what you need to identify. You can try to individually remove your recent downloads if you’re not sure of which app is the trigger. But if the No SIM card error still pops up while in safe mode, then you’ll need to troubleshoot software problems on your device.

Perform a factory data reset.

A factory reset will wipe all your data and personal information from the phone. Should there be any bugs or corrupted data dwelling in the system registry of your phone, that will also be eradicated in the process. The only downside from this reset is data loss. But then again, this might be the key to fixing the error. Should you wish to proceed with this reset, be sure to back up all your critical data beforehand. Then follow these steps to perform a factory data reset on your Galaxy A8:

Tap Settings.
Tap Backup and reset.
Select Factory data reset.
Tap Reset device then Erase everything to confirm.

Wait for your device to reset settings to the factory default values and delete all data. After the reset, your device reboots.

If the error is gone after the reboot, then you may proceed with the initial device setup. Otherwise, contact your carrier for more options.

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