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How to fix No SIM card error on your Samsung Galaxy S9 Plus (easy steps)

The No SIM card error may depict a possible software problem affecting the phone’s network functions particularly with the SIM card system. It can also denote a faulty or bad SIM card in use. Considering these possible triggers, the error can occur to any device regardless of whether it’s new or old. That said, it can likewise transpire on your new Samsung Galaxy S9+ handset. Read on to find out what to do if you will get to encounter a No SIM card error on your new Samsung smartphone before opting for a new SIM card replacement.

Before going further, if you found this post because you were trying to find a solution to your problem, then try to visit our Galaxy S9 Plus 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.

First solution: Restart your phone (soft reset).

Many occurrence of network problems in mobile devices including the ones depicted by the No SIM card error have been associated with minor software glitches that can be remedied by a device restart, also known as soft reset. For starters, follow these steps to carry out a soft reset on your Samsung Galaxy S9 Plus:

  1. Press and hold the Power button.
  2. Tap the option to Power off.
  3. Tap Power off again to confirm.
  4. After about 30 seconds, press and hold the Power button again until your phone boots up.

Alternatively, you can perform a simulated battery removal equivalent procedure or soft reset using the hardware keys. Here’s how it’s done:

  1. Press and hold the Power and Volume Down buttons simultaneously for up to 45 seconds.
  2. Release both buttons when the Samsung logo appears.

Wait until your device boots up completely and see if that fixes the No SIM card error.

Both of these methods won’t affect any of your data stored on the internal storage and likewise can yield to the same positive outcome. If not, then move on to the next applicable solution.

Second solution: Remove and reinstall SIM card.

Sometimes, the No SIM card error occurs because the SIM card is loose or dislodged thus could not be read by the phone. In this case, removing and reinstalling the SIM card can help. Should you wish to try it, then here’s how to properly do it:

  1. Turn your phone completely off.
  2. Press the card insertion or removal tool into the combined nano SIM/microSD card tray pinhole and then gently push it in until the tray pops out.
  3. Slide the nano SIM/microSD card tray out of the slot.
  4. Remove the SIM card from the tray and check for any signs of damage. If the SIM card looks good, place it back into the tray with the gold contacts facing the back of the phone.
  5. Press the nano SIM/microSD card tray back into its slot until it clicks.
  6. Once the tray is secure, press the Power button to turn your phone back on.

Note: Avoid touching the gold contacts on your SIM card as it could damage the card.

See if that fixes the No SIM card error on your Samsung S9+, else move on to the next possible solution.

Third solution: Reset network settings on your Samsung S9 Plus.

Network errors can likewise be triggered by incorrect or misconfigured network settings on the phone. Installing a new software update can usually make this happen especially if the update is programmed to automatically override settings on the receiving device. That said, it’s possible that your settings are reset without you even knowing. And the bad thing is that you’re getting this error because of it. As resolution, you can try a network settings reset to restore the network settings back to the original configuration and then set up network on your phone again. Before you start though, be sure to take note of your Wi-Fi passwords as they will be erased in the process. Once you’re all set, follow these steps:

  1. Swipe up on an empty spot from the Home screen to open the Apps tray.
  2. Tap Settings.
  3. Tap General Management.
  4. Tap Reset.
  5. Select the option to Reset network settings.
  6. If prompted, enter the PIN or password for your device.
  7. Tap Reset settings to confirm action.

Your phone then reboots when the network settings reset is finished. After it power cycles, set up your wireless network and other network option accordingly. If the No SIM card error is gone afterwards, then you’re good. Otherwise, you’ll need to try something else.

Fourth solution: Modify network mode settings on your Samsung Galaxy S9 Plus.

Sometimes, errors like this also transpire when using an incorrect network mode on your device. Network mode options may vary from carrier to carrier and likewise depends on your location. You can try switching between the network mode available and see if any of them fixes the error. Here’s how it’s done:

  1. Swipe up or down from the center of the Home screen to access the Apps screen.
  2. Tap Settings.
  3. Tap Connections.
  4. Tap Mobile networks.
  5. Tap Network mode.
  6. Select any from the given options including Global, LTE/CDMA, LTE/GSM/UMTS.

After making each selection, restart your phone and see if the error is fixed or not. Try the next available option if necessary. Here’s what each of these options does:

  • Global – preferred setting for most locations and can be changed if you are experiencing network service issues.
  • LTE/CDMA – setting used when experiencing network issues in locations that offer multiple network types and only require LTE/CDMA.
  • LTE/GSM/UMTS – setting used when experiencing network issues in locations that offer multiple types of network and only require LTE/GSM/UMTS.

Fifth solution: Update your phone software to the latest version.

No SIM card error that’s triggered by software bug can be rectified by installing a new software update on your phone. Software updates not only bring in new features but also bug fixes to address certain issues affecting many devices. Make sure that your phone is connected to Wi-Fi Internet and the battery is fully charged before starting the software update.

If you haven’t already, then try to check for any available over-the-air (OTA) update for your Samsung S9 Plus with these steps:

  1. Swipe up on an empty spot from the Home screen to open the Apps screen.
  2. Tap Settings.
  3. Tap Software Update.
  4. Select the option to Download updates manually.
  5. Wait for your phone to check for updates.
  6. Tap OK.
  7. Then tap Start to start downloading and installing new software update.
  8. When the restart message appears, tap OK.

Wait until your phone boots up completely then see if the No SIM card error is gone already. If it still shows up, then you may consider opting for a master reset.

Last option: Perform a master reset on your Samsung S9 Plus.

You may consider resorting to a full system reset or master reset on your Samsung Galaxy S9+ if the No SIM card error persists after exhausting all prior means to fix it. If it’s not a faulty hardware component, then most likely it’s a more complex software bug that’s inflicting the error to persists up to this point. You can proceed with a master reset through the Settings menu on your phone or through Android recovery mode. For faster method, follow these steps to carry out a hard reset via settings on your Samsung S9 Plus:

  1. Back up data on the internal memory by navigating to Apps-> Settings-> Cloud and accounts-> Backup and restore, then select the desired option like Back up my data or Automatic restore.
  2. After creating necessary backups, proceed to a master reset with these subsequent steps.
  3. Swipe up on an empty spot from the Home screen to open the Apps screen.
  4. Tap Settings.
  5. Tap General management.
  6. Tap Reset.
  7. Select the Factory data reset option.
  8. Scroll to the bottom of the screen then tap Reset.
  9. Select the option to DELETE ALL.
  10. If prompted, enter your credentials for screen lock and Samsung account verification.
  11. Tap Confirm to continue.
  12. Wait for the reset to finish and your device to reboot.

After it boots up, all settings are restored to factory defaults so you will need to proceed with the initial device setup to use your phone again.

Ask More Help

Contact your carrier for other options if none of the prior methods is able to fix the error. The SIM card might have acquired some physical or liquid damage so it’s no longer working. Should this be the case, you may avail for a new SIM card replacement from your service provider.

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