How to fix 'No SIM Card Detected' error on Galaxy phone

 If you get an alert that says 'No SIM Card inserted' or 'No SIM Card detected' even though you have a SIM card inserted, check the troubleshooting steps below. 

Check 1. Restart your phone and see if that fixes your problem as it often resolves many minor glitches.

• Method 1. Press and hold the 'Volume Down' and 'Power' buttons at the same time for at least 7 seconds. Your device should restart after this.
• Method 2.  Using two fingers, swipe down from the top of the screen to open the Quick settings panel. Tap the 'Power' icon, and then tap 'Restart'. Tap 'Restart' again to confirm.

Check 2. Inspect the SIM card

Turn off your phone by pressing the Power button and take out the SIM card from the SIM card tray.  Check for any visible signs of damage like scratches or stains. Clean the SIM card and tray with a clean, dry cloth. Reinsert the SIM card, making sure it is properly installed in the tray. 

Once everything is secured back into place, turn your phone on again and see if the error is gone.

Check 3. Reset network settings

This usually happens after modifying your phone settings and manually switching menu options. Please note that resetting network settings will also reset Wi-Fi, Bluetooth, and other network settings so make sure you take note of this information beforehand.

Check 4. Test if the SIM is still working

Insert the SIM card into another phone and see if it gets detected. If the SIM card is also not detected by another phone, then the SIM card is already damaged. We recommended contacting your service provider for assistance and replacing your SIM card with a new one.

However, if it works with other devices, the problem could be with your phone. In this case, please request for servicing.

Request Service

If the above steps did not resolve the issue, please visit your nearest Samsung Authorized Service Center, so we can assist you further with your concern. You may also book a repair before visiting the service center.