When your phone doesn’t recognize the SIM card, chances are that the SIM card might be dislodged, not compatible, or worst, damaged. There are also other instances where SIM card errors are triggered by network problems or software issues on the phone that might have caused conflict with the network system. For as long as the SIM card is free from any sort of physical or liquid damage and compatible with your device, you will have a higher chance of fixing the problem on your end. Read on to find out what to do if you will encounter SIM card errors particularly No SIM card warning on your Samsung Galaxy J2 Pro (2018) smartphone.
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 (soft reset).
A device restart or soft reset will likely be able to get rid of the error especially if it transpires among other random software glitches on the phone. A soft reset will also clear the phone’s internal memory from errant cache or temporary files that’s inflicting minor glitches. Here’s how to perform a soft reset on your Galaxy J2 Pro 2018:
- Press and hold the Power button for a few seconds.
- From the menu options, select Power off and then tap OK.
- After about 30 seconds, press the Power button again until your device power cycles.
- Alternatively, you can press and hold the Power and Volume Down buttons for up to 45 seconds. Then release both buttons when the phone restarts.
This does not affect your data and personal information stored on the internal memory of the phone.
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Second solution: Remove and reinstall SIM card.
To make sure that the problem is not due to a dislodged or loose SIM card, remove and reinstall/reseat the SIM card on your Galaxy J2 Pro with these steps:
- Turn off your device.
- Remove the back cover.
- Remove the battery.
- Pull the SIM card out.
- Examine the SIM card for any visible signs of damage.
- If everything looks good, place the SIM card into the SIM card slot with the gold-colored contacts facing downwards.
- Insert the primary SIM card into the SIM card slot 1 and the secondary SIM card into the SIM card slot 2.
- Put the battery back in and then the back cover.
- When everything is secured in place, turn on your phone.
This workaround can also help fix any minor errant due to data corruption from within the SIM card system of your device.
Third solution: Update software to the latest version available.
Installing the latest software update can likewise be the key to fixing the No SIM card error if it’s attributed to certain bugs and malware. Aside from offering new features, new updates also contain fix patches for security enhancements. To get started, check for any available software update for your device with these steps:
- Go to Settings.
- Tap About.
- Select Software Update or Update.
- If an update is available, you will be prompted with an update notification. Read and review the update details to find out the new features and system improvements it brings.
- Back up your important data for safekeeping.
- Then follow the onscreen prompts to proceed with the update download and installation process.
Your phone must have a strong and stable Internet connection and sufficient power to complete the over-the-air (OTA) update download and installation.
Fourth solution: Reset network settings on your Galaxy J2 Pro.
Invalid network settings are also among the possible reasons as to why network-related errors including No SIM card error suddenly occur. This is likely the case if the error occurs after modifying some settings on the phone. That said, reverting the changes you’ve made would be necessary. But if you couldn’t identify which settings or options to reconfigure, then you can just perform a network settings reset instead. All connection data including Wi-Fi and Bluetooth networks will be deleted and data restrictive settings, background data sync settings, and network selection mode are restored to default values. Any incorrect or invalid network settings will also be cleared. Here’s how it’s done:
- Tap Settings.
- Tap General Management.
- Tap Reset.
- Select Reset network settings.
- Tap Reset settings.
- If prompted, enter your PIN or password.
- Tap Reset settings again to confirm reset.
Your phone will automatically restart when the reset is finished. You will need to set up connectivity features including Wi-Fi and Bluetooth after the reboot.
Fifth solution: Reset and restore your Galaxy J2 Pro to factory defaults.
If none of the previous methods is able to fix the No SIM card error on your Galaxy J2 Pro (2018), then you may resort to a full system reset or master reset. This will wipe everything from your phone system including errant apps, bugs and malware that might have caused complex system issues that eventually trigger recurrence of such errors. Should you wish to proceed, be sure to back up all your important data and personal information because they will all be deleted in the process. When you’re all set, follow these steps:
- Go to Settings.
- Tap Cloud and accounts.
- Tap Backup and restore.
- If preferred, enable options to Back up my data and Restore.
- Go back to Settings.
- Tap Reset.
- Select Factory data reset.
- Tap Reset device.
- Enter your credentials then tap Continue.
- Tap Delete all.
When the reset is finished, your phone reboots. And when it restarts, you can proceed with the initial setup.
- New SIM card replacement. You may consider requesting a new SIM card replacement if you suspect that the SIM card is damaged or outdated. Contact your service provider or carrier for further recommendations on this matter.
- Service/repair options. If you suspect that a faulty hardware component is to blame like damaged SIM card tray, slot or other relevant parts, then you can take your Galaxy J2 Pro to a Samsung service center. Let an authorized technician examine and/or repair any damage that might have prevented your phone from reading the SIM card.
- Contact Samsung Support. You can always report the issue to Samsung Support if the error started to occur after installing a new software update. Doing so will let them make necessary assessments and if necessary, tag it among other post-update issues to be addressed in the next update rollout.
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