Troubleshoot “No SIM Card” Problem on Galaxy S10, S10E, or S10+

Restart your Galaxy S10 device

As usual, the first method to try to fix issues and bugs on a smartphone or tablet is to reboot the device. Here’s how to restart your Galaxy S10 device:

Press and hold Volume Down and Power buttons for about 10 seconds or until the Samsung logo pops up on the screen

Once the logo appears, release the keys and allow the device to reboot – If the Maintenance Boot Menu opens up, select Normal Boot

Remove and remount the SIM card

Since the “No SIM card” problem is making a direct reference to the SIM, removing and remounting the card might solve the issue. Sometimes, due to a shock, the SIM card might slightly move inside the tray so that the before-mentioned issue pops up. Here’s how to remove and remount the SIM card:

Power off your Samsung Galaxy S10 smartphone
Keep your device with the screen facing you and, using the removal tool from the smartphone’s box, remove the SIM tray
Now, you can pull out the SIM card from the SIM tray
After a few seconds, remount the SIM and push the SIM tray back into the phone

Try the SIM card into another phone

If none of the before-mentioned solutions worked, then the SIM card might be faulty. To see if that’s the reason behind the “No SIM card” problem on Galaxy S10, S10E, or S10+, you can remove the SIM from your Galaxy S10 smartphone and insert it into another phone. If it works, then the “No SIM card” error might be due to a software-related issue.

Wipe cache partition

Commonly, a corrupted cache partition can cause a lot of issues on Android smartphones. The “No SIM card” problem might be sorted out by performing a wipe cache partition on your Galaxy S10, S10E, or S10+. Here’s how to do that:

Shut down your smartphone
Press and hold both the Volume Up and Bixby buttons for a couple of seconds
Press and hold the Power key without releasing the first two
Once the Android logo pops up, release all the keys
When the Android Recovery Menu opens up, navigate to Wipe Cache Partition and select it with the Power button
Confirm the selection
Once the Wipe Cache Partition finishes, reboot the system

Network settings reset

If wiping cache partition did not solve the “No SIM card,” you can reset network settings to see if that works. Here’s how to reset network settings on Samsung Galaxy S10 smartphones:

Go to Settings -> General Management -> Reset
In the Reset menu, tap on Reset Network Settings
Tap again on Reset Settings to confirm the task

Run your device in Safe Mode

Sometimes, a third-party application might conflict with the system apps, so that might be the reason behind the “No SIM card” error. To troubleshoot “No SIM card” problem on Galaxy S10, S10E, or S10+, you might need to see if that’s the case for you, too. Here’s how to enter Safe Mode:

Power off your Galaxy S10 smartphone
Press and hold the Power button key and release it when the SAMSUNG logo appears on the display
Right afterward, press and hold the Volume Down button
Hold the Volume Down button until the device boots up, and the Safe Mode text appears in the bottom left corner

Once in Safe Mode, see if the SIM card functions, and if it does, there might be a third-party app conflict behind the issue. You can try to uninstall all the suspicious apps, and check if that sorted out the “No SIM card” error.

Factory reset your smartphone

As the ultimate solution to troubleshoot “No SIM card” problem on Galaxy S10, S10E, and S10+, you’ll have the master reset. This method will erase everything on your phone and return all the phone’s settings to their defaults. Accordingly, it would be smart to back up any personal data that you have stored on your device.

Here’s how to perform a factory reset on Galaxy S10 smartphones:

Go to Settings -> General Management
Tap on Reset
Choose Factory Reset
Review the instructions presented on the screen and tap on Reset to proceed
Select Delete All to confirm

Alternatively, you can do that following the next steps:

Shut down your device
Press and hold the Volume Up button and the Bixby button, then press and hold the Power key without releasing the first two keys
When the Android logo pops up, release the buttons to permit the OS to enter the Android Recovery Menu
Using Volume buttons go to “Wipe data/ Factory reset,” and select the option with the Power key
Confirm the choice
“Reboot System Now” message should appear soon
Opt to restart your device now

In case none of the before-mentioned solutions helped you troubleshoot “No SIM card” problem on Galaxy S10, S10E, or S10+, then you might face a hardware issue. Accordingly, the only way to fix that is to seek professional help from your local Samsung repair store or simply contact Samsung for further assistance.

Troubleshoot “No SIM Card” Problem on Galaxy S10, S10E, or S10+