Here’s what to do if your Samsung Galaxy S20 FE 5G is not detecting SIM card
Fix 1: Turn Airplane Mode on and off
Whenever you face any sim card or network-related issues, you should first turn on the Airplane Mode and then turn it off. This method does the trick most of the time. This method disconnects your device from the wireless system until the option is not turned on.
To turn on the Airplane Mode, Navigate to Settings > Connections > Airplane Mode and then tap on the toggle next to the Airplane Mode. Alternatively, you can turn on the feature from the Quick Settings.
Soft reset (also called Force restart) is more effective than performing a normal reboot. The No Sim Card Detection Error on your Samsung Galaxy S20 FE 5G could result from a system glitch. Performing a soft reset ends all the running processes, including those responsible for system glitches, which can fix all the sim card or network problems.
To perform a soft reset on your Samsung Galaxy phone, press and hold the power button and volume down (-) button for a few seconds. Release your fingers from the buttons once the Samsung logo appears on the screen. Let the device reboot itself, and check if the sim card issue persists.
Fix 3: Remove and re-insert the sim card
Your phone can throw errors such as No Sim Card Detected when the sim card is damaged or misplaced in the sim tray. To rule out this possibility, open the sim tray and check if the sim card is placed as it should be. Also, check for any damage on the card. If you found any damage on the sim card, replace it by going to the respective carrier’s store. Otherwise, move on to the following method.
Fix 4: Reset network settings
Some changes in the network settings might have caused the device not to be able to detect a sim card. Thankfully, Samsung offers an easy way to reset all the changes. By resettings network settings, you will lose access to Wi-Fi passwords, paired devices, etc.
To reset network settings on your Samsung Galaxy S20 FE 5G, go to Settings > General management > Reset > Reset network settings > Tap on Reset settings.
Fix 5: Factory reset
If none of the methods has worked for you, we are left with the factory reset option. This method often works with software-related issues, including the No Sim Card Detected issue on your Samsung Galaxy S20 FE 5G.
By performing a factory reset on your phone, you will lose access to all your data. Therefore, take a complete backup of your phone before using this method. To factory reset your Samsung Galaxy S20 FE 5G, navigate to Settings > General Management > Reset > Factory Data Reset. After that, the device will take a couple of minutes to complete the process. Ensure that the device has at least 50% battery, as the process can sometimes take longer than usual.
We believe that one of the methods would have helped you fix the issue on your Samsung Galaxy S20 FE 5G. In the comments below, let us know which method did the trick for you.
I’ve tried replaced the actual SIM card, reset network settings, clear Android cache, backup/data wipe/restore from the backup file, to no avail. the issue is sporadic but always comes back and sometimes occurs more than once in 24 hrs, then not all for an entire week. I’m sceptical of it being due to a 3rd party app. It might be due to the snug protective case but I think they just have a poor sim reader or sim slot design across several models. Most anoying is when the airplane mode ‘fix’ doesn’t solve it; often taking the sim card out/ reseat sim card will fix it temporarily. My SIM card is always clean and looks brand new, including the one that I replaced.