How to fix phone sim card not detected? There are several reasons why your Android device does not read the SIM card. Sometimes this happens because you did not insert the SIM card correctly or because of a software problem. Whatever the reason, a quick fix must be found. For this reason, in this article, we want to mention some solutions for when your Android phone can not recognize the SIM card. Be with the Wironal.
How to fix phone sim card not detected
1. Primary solutions
If what is causing this error on your SIM card is related to a software problem, sometimes a simple restart or reboot is all you need to do to fix the problem. Press the power button to bring up the “Restart” pop-up window. Tap on the phone to restart it. If the phone does not have the “Restart” feature, turn it off, wait 30 seconds and turn it on again. Another simple solution in newer versions of Android is to find out if your SIM card is really on. To do this, go to “Settings -> Network & Internet -> SIM cards, then tap the drawer next to your SIM card to turn it on.

2. Change the network mode to automatic
Changing the network mode automatically is another way you can try. You can do this by going to “Settings -> Mobile Networks -> Network Mode” and selecting the first option, which is LTE / WCDMA / GSM (automatic connection).

3. Select the appropriate network operator
If the network operator you are using is not the same operator selected in the settings of your Android device, you will definitely receive a SIM card error. Go to “Settings -> Mobile Networks -> Network Operators -> Search Networks” to make sure you have selected the right network operator. After doing this, tap your Android device on your network operator by searching and displaying the results.

4. Enter your APN network settings manually
If the above two methods do not help you, your SIM card may have completely lost its connection to the network to which it is to be connected. If this happens, you may need to enter your network operator APN settings manually. On newer Android devices (Android 9 onwards) you can go to “Settings -> Network & Internet -> Mobile network -> Advanced -> Access point names” and then click on the “+” icon in the upper right corner of this Get the job done.

At this point, to get the APN settings you need to log in, you must contact your network provider or check online to see if your network provider settings have been released. Also save your APN settings by taking a screenshot, so that if such a problem occurs again, you can quickly return to this section and apply the settings.
5. Disconnect the battery and SIM card
Another basic solution you can try is to remove the battery (if it does) and the SIM card. Before doing this, make sure you have turned off your Android device. After separating everything, wait about a minute and re-enter everything. It is common for the phone to fall out, but even if it is not damaged, the SIM card may be out of place. An inexpensive and unique way that many have tried is to add some paper or even tape to hold the SIM card in place. This usually puts the SIM card firmly in place and fixes the problem.
6. Use the phone in Safe Mode
Unfortunately, not every program you install runs well. Some programs do more harm than good and cause this error. Start your device in safe mode. Stay in Safe Mode for a few hours and then check to see if the problem persists. If the problem persists, try to remember a few programs that you just installed and delete them. Exit Safe Mode and see if the issue is resolved.
7. Try the Airplane Mode solution
If you have tried all the above solutions and you are sure that there is no problem with the SIM card, then you should try the Airplane Mode solution. Swipe down from the top of the screen to turn on Airplane Mode.

Depending on your Android version, you may receive a warning message when turning on airplane mode. Turn it on and on for about 30 seconds or so. By turning it off, your Android device will start searching the network and the SIM card error should be fixed.
8. Clear the SIM card to clear the SIM card error
Clearing Android cache is very simple in trying to fix a SIM-free error. Go to “Settings -> Storage -> Internal Storage -> Cached Data”. When you tap the saved data, a window will open telling you that the cache of all your device applications will be deleted. Just click the “Delete” tab to get the job done.

Results
If there was only one way to know what caused the No SIM card detected error, you would not have to waste your time using different methods. Unfortunately, as long as the Android device does not show a message as to why the trial and error method is what you should try.