There are many problems that can cause your phone to get a message saying “Invalid Sim Card” and similar. It could be a problem with the mobile phone, the SIM card, or even the carrier. The good news is that there are many things you can try to fix this problem, some of which may work better than others. Let’s go through the most common fixes, and see if one of them can help you solve your problem.

Every Android user has experienced it: you turn on your phone and it pops up with an error message, “Invalid SIM card”. This error can occur for a variety of reasons, from your SIM card being damaged to a bad connection between the phone and SIM card. The good news is that this is pretty easy to fix.

The Android operating system is the brainchild of Google, but it has been customized by the manufacturers of each phone to meet their own needs. This is the reason why there are so many versions of Android in the market; it is also the reason why there are so many problems with Android phones. One of the most common problems that plague Android phones is the “Invalid Sim Card” error. This issue is said to be caused by a defective or unsuitable SIM card or a faulty SIM card interface.

Are you trying to resolve an invalid Android SIM card error? Worried about what to do if your phone says your Android SIM card is invalid? If this is the case, read this article carefully and find out the best ways to fix an invalid SIM card on Android? Users usually encounter many problems on their Android phones, and one of these common errors is Invalid SIM card. This is an annoying situation that has been reported by many users. You have given various error messages such as SIM card not detected, No SIM card, Invalid SIM card, etc. If you are also facing these mistakes and looking for solutions, don’t waste your time and keep reading this blog.

What is the invalid Android SIM card error?

If your phone reports that there is no Android SIM card, it means that the SIM card is not inserted, is not recognized, or that the SIM card connection is loose. This is a serious problem because without a SIM card you cannot use your phone for any purpose. So, it is very important to know how to fix the undetected SIM card error on your Android phone.

How do I fix an invalid SIM card on Android?

Here I will show you some simple and possible methods to solve invalid SIM card error on HTC/Samsung/LG/Sony phones and others. Try them out and see which one works best for you.

Solution 1: Restart Android phone

One of the easiest and most effective ways to fix the situation when your phone indicates that there is no Android SIM card is to restart your phone. It is easy and allows you to correct minor errors or inaccuracies without further ado. If you get such an error message, restart your Android phone and see if anything changes.

Solution 2: Remove the SIM card and the battery

Another important method to fix an invalid Samsung Android SIM card is to reinstall the SIM card. It’s also an effective way. First, remove the battery (only if it is removable) and remove the SIM card from the tray. After removing it, wait a moment and put it back on. Now check if the error is fixed and the network is displayed on your phone. If not, go to the next method.

Solution 3: Clear Android phone cache and data

You also need to clear the cache and data from your Android phone. It is also a convenient way to clear an error on the SIM card. You need to go to Settings > Memory > Internal memory > Data cache. After you click on the cache data, a pop-up window will appear saying that this will clear the cache of all applications on the device. Just click delete and move on.

Solution 4: Switch network mode to Auto

You can fix an invalid Android SIM card by changing the network mode. Switching from network mode to automatic mode may help. Just go to Settings > Mobile networks > Network mode > select the first option which will be LTE/WCDMA/GSM (automatic connection). That’s it. Now check whether the problem is solved or not.

Solution 5: Insert a valid SIM card

Before inserting the SIM card, check whether it is valid or not. Sometimes, when the SIM card is not valid, this error message may appear. Please check that there are no problems with the SIM card. If everything is in order, only then install it in the unit and use it.

Solution 6: Selecting the correct network operator

Another possible cause of an invalid Android SIM card is related to an incorrect carrier selection. Therefore, make sure you select the right network operator by going to Settings > Mobile networks > Network operators > Network search. When the search is finished, the results will be shown on the screen, you have to click on your media. That’s it.

Solution 7: Air mode activation

You can also activate the airplane mode of your device to solve problems with an invalid SIM card. Many users report positive results when using it. Here’s what you need to do:

  • Swipe down from the top of the screen and activate flight mode.
  • You will get a warning message depending on the version of Android.
  • Now let it stand for 30 seconds.
  • After 30 seconds, turn it off and the device will start searching the network.
  • Hopefully your phone is now searching the network and the SIM card issue is resolved.

Solution 8: Enter APN settings manually

It is possible that your SIM card has completely lost contact with the network it is supposed to be on. If this happens, you must enter the APN settings manually. This is how you should proceed: Go to Settings > Network & Internet > Mobile Network > Advanced > Access Point Names > click on the + icon in the top right corner. You should now contact your network operator to obtain the APN settings, which you can enter here or check online. Also, save the APN settings for future use to easily correct such an error.

Solution 9: Accessing the phone in safe mode

You may have noticed that not all applications run smoothly and that there are hiccups somewhere. This can cause such an error, so you need to boot the device in safe mode. This is recommended because if an application has a problem, it can let you know. If the Invalid SIM Card error is resolved, check whether the error was caused by a third-party application. So try uninstalling these applications and exiting safe mode, hopefully the error is fixed now.

Decision 10: Purchasing a new SIM card

If you still get the same error message, I recommend you use a new SIM card. The SIM card may be damaged. If you buy a new SIM card, you may be able to fix the SIM error. Buy a new SIM card and insert it into your phone. Then see if your phone can detect it. You can also seek professional help if you need it.

Decision 11: Performing a factory reset

The last remaining option is to reset the phone to factory settings. This will completely reboot your device and make it as good as new. But it also carries a risk: the risk of losing the data stored in it. Before you perform a factory reset, you need to back up all the necessary items on your Android phone. Now perform the following steps:

  • First go to your phone’s settings
  • Then go to the Save and Reset option.
  • Now click on Factory Reset in the Personal Data section.
  • A message appears saying that all data, including data, music, accounts, applications, settings, etc. will be erased from the device memory.
  • Then press the Reset phone button
  • After restarting the device, all data on the phone will be erased and hopefully the error will not occur again.

Decision 12: Alternative method to recover an invalid Android SIM card

Apart from all the above methods, you can try the alternative solution of Android repair tool. It is only for Android users and can easily fix various Android problems or bugs. If you want to know how to fix invalid SIM card on Android, then Android Repair is the best solution. Recovers not only invalid SIM cards, but also other errors such as. B. Settings block Samsung, Google Play Store blocks pending download, Pandora continues to block, apps continue to block Android, etc. So just download this repair tool and solve the problem easily. (*The free version only previews the recoverable files).


That’s the end of this article. I hope all the solutions presented here will help you to fix invalid SIM cards on Android phones. Manual and automatic solutions are given. For quick results, try using Android Repair as it is a professional tool that easily deals with Android errors like invalid SIM card. If you have any suggestions or questions, please put them in the comment box below or contact us directly. You can also contact us through our social media pages such as Facebook and Twitter. Sophia Luis is a professional blogger and SEO expert. He enjoys writing blogs and articles about Android and iOS phones. She is the founder of Android-iOS data recovery and is always looking for solutions to problems with Android and iOS devices.While the majority of Android devices on the market are capable of handling a SIM card, there are still some that have trouble. Whether it’s an old or cheap device that doesn’t have the right hardware or a new device that’s not designed properly to use a SIM card, there are ways to fix the problem. Here are 12 top solutions to fix “Invalid Sim Card” on Android.. Read more about how to fix invalid sim and let us know what you think.

Frequently Asked Questions

How do you fix an invalid SIM card?

When your phone displays an “Invalid SIM card” error message, it is usually caused because your device does not recognize your SIM card or the SIM card is not able to deliver any data to your phone. This message can occur from many different reasons, including a defective SIM card, a faulty SIM card reader on your phone or a software error. We show you how to fix this issue by troubleshooting the problem and replacing your SIM card. If you have an Android phone, it is unlikely that you will ever have to deal with the dreaded “Invalid Sim Card” message. But if you do, don’t panic! You can usually fix this error in a few quickly and simple steps.

Why is my phone not reading my SIM card?

It’s always frustrating when your phone refuses to read your SIM card. You can’t call anyone, you can’t send text messages, and you can’t use any of the apps that rely on your phone number for login information. “Invalid Sim Card” errors are some of the most common problems that plague smart phone users, but thankfully, nothing is impossible to solve. Well, I get it. I mean, I’ve been there before. You’ve just gotten a brand new phone, and you’re so excited to use it. You put your SIM card in, and boom, it’s not reading the SIM card. The sad face pops up on your phone, and you bring your phone to the store to get a new SIM card, only to find out it’s not the SIM card.

How can I fix my SIM card?

The Invalid SIM Card Error is one of the most annoying things for Android users. It can occur for a variety of reasons, and while some of those reasons are more serious than others, the problem can still cause a lot of stress and frustration. Unfortunately, the error message doesn’t really give you much information about what the problem is, which can make it hard to find a solution. As you know, the SIM card is a vital element in the modern world, as it serves as a physical connection between you and your mobile service provider. And if your SIM card is not working, then you’re out of luck. Fortunately, there are a variety of solutions that you can try at home that can help you troubleshoot the problem.

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