Fix Invalid Sim Card on Android – The invalid SIM card error indicates that there is no SIM card in the device, that the connection is defective, or that the SIM card is loose. Therefore, due to these reasons your sim card not working. It makes no difference why you are getting this error message; there’s a link between your SIM card and its tray.

Fix Invalid Sim Card on Android


How to Fix Invalid Sim Card on Android?

1. Reboot Your Device

Unlike the old days, there’s no need to smack an acting-up device to get it working – all you might need is to turn it off and on again. Restarting your device is an effective way to fix minor issues, including SIM problems, lags, and crashes. Rebooting has benefits. It clears the RAM, the temporary storage for data of working programs, and stops running apps. As a result, your device returns from its data overloaded status to a “fresh” state.

This solution only has downsides if you overdo it. Device lifespan shortening due to frequent rebooting is an example. This is why technology experts recommend restarting a mobile phone only once a week. To reboot an Android device, just click on or hold the power button. Select “Restart” instead of manually shutting it down and turning it on.

To restart an iOS device, press and hold the volume and/or the independent side or top button. Drag the slider to turn it off. Only turn on the gadget once the shutting down process is finished. You have to press the side button again until the Apple logo shows up.

2. Examine the SIM Card Tray

The SIM tray is often damaged or broken, and this is one of the most common causes of the error message. If it is broken, use a piece of foam to patch it. You can put it on by removing the back cover and putting it over the SIM card, then replacing the back cover.

Fix Invalid Sim Card on Android

The error “invalid SIM card” indicates that your SIM card is having a problem and is unable to identify it. So, simply turn off your Android phone and check to see if the SIM card is having any issues. It is preferable to insert a valid SIM card and verify that everything is in working order. This will assist you in determining if the issue is with the SIM card or its tray.

3. SIM Card Reinserting

As I previously said, this can occur due to a loose or faulty link, so I have a better way to deal with it. Simply switch off your Android phone, remove the charger, and replace the SIM card. This is another method for getting rid of the no SIM card errors messages from your cell.

4. Choose the Right Network Operator

If the network operator selected does not fit the settings on your Android phone, then you will experience this error. Simply go to Settings > Mobile Networks > Network Operators > Search Networks to ensure you have the right network operator. After that, your device can search for a network, and choose your carrier from the visible results.

5. Toggle the Airplane Mode switch.

Once you have decided that the problem is not with your SIM card, try converting your computer to Airplane Mode. This is because many users have considered it useful. To do so, simply follow the steps below:

To begin, pull down your Android phone’s notification screen. Then look at the Airplane Mode icons. To turn it on, simply click on it. A warning message will appear; simply click on it. Finally, wait 30 seconds before clicking on Airplane mode again and switching it off. Your phone will check for a network again after you make this adjustment, and if it is successful, your issue will be resolved.

6. Purchase a new SIM card

You can receive the same error message even after reconnecting your Android phone’s SIM card. If this is the case, check to see if your SIM card is affected. So go out and buy a new SIM card, plug it into your account, and see if your phone can’t detect SIM card or not. If a new SIM card is working and detected, the old one is no longer working and should be replaced. However, if a new SIM card is not working, your phone has a problem. You need clinical assistance in this case.

7. Switch to Auto Network Mode.

You can receive such an error message if your Android phone has selected the incorrect network mode. This occurs when your phone fails to select the appropriate network. When your phone fails to pick the correct network, this is what happens. To deal with the error message, however, set your network mode to auto. Follow the steps below:

To begin, go to your phone’s Settings menu. Under Connections, look for more networks and click on them. Next, go to Mobile Networks and then Network Mode. A popup will appear with various choices. Make sure you pick the first choice. When you make this move, your device will connect to the available network automatically. If you make a mistake, you will receive No SIM Card errors on your mobile.


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