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20 Ways To Fix the “No SIM Card Detected” Error In 2 Minutes

Are you suffering from the “No SIM Card” or “SIM Card Not Detected” error despite having a SIM card plugged in? If you are, then you’ve come to the right place.

I know how you feel, and it’s frustrating. If your Android phone has any trouble reading your SIM, check the placement of your SIM card. If you’re wondering why: most SIM detection errors in phones are due to improper insertion of the card. Although this isn’t always the case, you might want to check the position of your SIM card first.

Related: How to fix “No SIM Card Emergency Calls Only” on Android

So I’ve compiled 20 possible solutions for the SIM card detection issue. Let’s check the steps below and find out if one of them can solve your problem!

See also: Methods to Fix “SIM not provisioned” on Android


How to fix the “No SIM Card Detected” error on Android devices

Without further ado, here are 20 different ways to fix “No SIM Card” issues on Android phones or tablets.


1. Reboot your device

Restart your Android device. If you just inserted a new SIM, many phones won’t recognize it until you restart the device.

This method is probably the simplest way to resolve minor problems of any kind when it comes to your Android device.

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Turn Off Device

2. Remove the battery. (If possible)

Turn off your phone and unplug it from any power source. Remove the battery and wait 30 seconds or more.

After doing so, put the battery back in place and turn on your device. This method power cycles your device and eliminates many probable causes of errors.

Also Read: 10 Android Phone with Best Battery Life


3. Adjust the SIM card

The SIM card must be seated in your Android properly. Your SIM card is what connects you to your network, so this is crucial.

If you accidentally dropped your Android, the SIM can become misaligned, or it may not have been installed correctly from the start. Make sure to place the SIM securely into your device.

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Remove Battery and SIM

If the SIM doesn’t fit well in your phone’s slot, you can try placing a tape, cardboard, or paper into the tray for a tighter fit. Although it might seem like a cheap fix to your SIM problems, this method works for many.

Also, be careful in handling your device. Never use too much force to avoid damaging your Android phone.


4. Manually select carrier/network operator

Sometimes, your settings will change all of a sudden due to updates. This change can sometimes cause the network to disconnect.

If these instructions differ from what you see on your user interface, visit the manufacturer’s website for help.

Manually select your network operator:

1. Go to “Settings.”

2. Look for “Wireless and Networks.”

3. Tap on “Mobile Networks.”

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4. Select “Network Operators.”

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5. Search for networks manually.

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Alternatively, on some phones, it will be:

1. Go to “Settings.”

2. Look for “Wireless and Networks.”

3. Select “Data Usage.”

4. Tap on the three vertical dots in the upper-right corner.

5. Select “Cellular Networks“.

6. Tap “Network Operators.”


5. Change network mode to auto

Changing your Network Mode to Auto allows your device to select the best network for you automatically. If you’re not familiar with this option, follow these step-by-step instructions below.

Set your Network mode to auto-connect:

1. Go to “Settings.”

2. Look for “Mobile Networks.”

3. Tap “Network mode.”

4. Select “LTE/3G/2G (auto connect).”

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6. Clean the SIM card

Examine your SIM card. Is it dirty? Is the gold side clean? Perhaps you can remove dirt or debris. Clean the spokes/connectors on your SIM card and reader with air or a soft dry cloth.

Handle the SIM card with care so as to not damage the card unintentionally.

sim phone
Clean your SIM Card

7. Replace your SIM card

Some Smartphones, especially the latest ones, tend to have a smaller tray for the SIM Card. This may require you to downsize your standard size SIM card.

If that’s the case, did you cut a standard size SIM down to micro or nano size? If so, take a close look at the SIM Card.

If there is any damage to the gold plates, you will have to replace your SIM card.


8. Remove and re-insert SIM card

Make sure you turn off your Android device before installing or removing SIM cards—otherwise, you may harm the device or the card. Make sure not to scratch or bend the SIM card.

For most modern devices, the SIM tray is located directly beside the volume or power button. For older Android devices, you can access the SIM by sliding off the back cover and removing the battery.

Power Off
Remove your SIM card!

9. Test your SIM card reader

Use another SIM card on the device and see if it’ll work. If it does, then your current SIM card is defective.

There are many affordable prepaid ones that you can get for the short term if it’s going to take some time to get a postpaid one.


10. Toggle flight mode

Enable, then disable “Flight Mode.” This option disables all broadcasts and removes cell reception when you toggle it.

Most phones provide easy access through “Quick Settings” with a swipe down from the top of the screen. You can access it through the “Settings” option as well.

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Make sure that you don’t leave Flight Mode turned on.


11. Clear Android cache and data

Sometimes, the solution to this issue is clearing your device’s cached data. Take note that things may take a little longer to load next time, and you will probably have to log in to some of your apps again.

Clear your Android Cached data:

1. Go to “Settings > Storage.

2. Look for “Storage Settings.

3. Select “Internal Storage.

4. Tap “Cached data.

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5. Tap “Clear” and accept.

Related: How to clear cache on Android in under 60 seconds


12. Check the SIM tray

If the SIM tray is broken or damaged, it could be the cause of your phone showing the “No SIM Card Detected” error. Don’t worry! Replacing the SIM card container will fix your problem.

Alternatively, using the paddings that we spoke of in Method 3 — Adjust the SIM Card — can also be used to adjust the tray by using a piece of foam to apply pressure. (Applicable only to older phone units)

Apply the foam by removing the back cover and placing it over the SIM card area. Replace the back cover.


13. Contact customer service

If you’re phone came from your service provider, check your “service and repairs” warranty. If it’s still within the time limit then you’re in luck!

Have your phone with you when you check-in with the service center, in case they ask for information like the IMEI number. They may replace your SIM card, the slot reader, or even your device in some cases, but it depends on the nature of the problem.

Sometimes all it takes is for your carrier to activate your SIM in their database.

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14. Uninstall problematic third-party apps

One possible thing that prompts the “No Sim Card Detected on Android Phones” issue is due to third-party apps. To verify that third-party apps don’t cause it, run your device in Safe Mode.

If it works, an app might be the cause of the issue. Safe Mode runs only system defaults so that you can rule out any third-party apps that can be the root of the problem.

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If you already suspect that a particular app may be the problem, try uninstalling it first. Use the process of elimination and deduction to find out which app is causing the problem.


15. Hide your notifications

If you aren’t using a SIM and you solely want the error message to go away, you can go to the Google Play store app and search for notification blocking apps.


16. Do a factory Reset

If all else fails, your last trump card would be Factory Resetting your phone. Do keep in mind though that this will wipe everything back to its default factory settings.

Therefore, we highly recommend doing a full backup beforehand.

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You should be able to reset your phone from the “Settings” menu. Choose “Backup & Reset“, then Factory Reset.

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17. Reset your network settings

Another easy fix for the “No SIM Card” detected Android issue is to clear your network settings back to their defaults. To do this, go to “Settings > Backup & Reset > Network settings reset.”

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18. Update your Android phone

Check for any available OS updates by going to “Settings > Software Updates > Download updates manually.”

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19. Go back to the original ROM

If you recently flashed your phone with a different ROM, it could potentially be the reason why you have this issue. If you didn’t observe problems before you did it, then there’s a high chance that the error occurred due to ROM flashing.

Restoring the original ROM of your phone will fix the issue. To do this, boot into Recovery Mode then perform a factory reset. From there, proceed to “Backup & Restore” and hit “Restore.”


20. Replace your phone

If your phone sustained physical damage recently:

  • If it gets wet, dry out your Android phone as soon as possible.
  • Try replacing the SIM card first.
  • Contact your service provider for details.

Frequently Asked Questions


In conclusion

If you tried all 20 methods and your Android phone still says “No SIM Card” error, chances are, your phone’s hardware is damaged. If not, your SIM Card could have damages or defects.

Hopefully, this will help get your Android back to normal. If not, leave me a comment down below, and I’ll do my best to help you based on your specific circumstances.

If the problem persists, but you no longer have a warranty, contact the manufacturer or your service provider. If it’s no longer under warranty, you might have to bring it to a repair center.

Let us know what I can do to help in the comments section below!

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17 Comments

  1. Hello. I’d love your help to fix my Android phone, which is a VS985 4G. For the past few days, my SIM card randomly “ejects” itself. Sometimes, when I’ve turned on my phone, everything SEEMS to work just fine . . . for a few minutes. Then, for apparently no reason, the phone just disconnects the SIM card. My phone has had no system updates for a while. I’ve tried toggling Airplane Mode on and off, cleaning the cached data, and even rebooting it, but it still didn’t fix the problem. P.S. I only download apps through Google Play, and (regardless of always having my phone covered by a rubber Otterbox), it has been thrown (not by me) AND dropped before, with no resulting problems.

  2. Just wanted to say that your article is very thorough, easy to follow and understand, and well written. Thank you.

  3. I’d like to add on for step 10 :
    And If your phone is unable to read the other person’s SIM – then the issue is with your phone’s sim card reader.

  4. My new samsung a50 now detecting no simcard when I insert my airtel sim rather than sim is working properly in other devices and other sim cards working in my device. Strangely I have completed all the tricks advice by customer service. No result. What can I do.

    1. My father is having Samsung A10 and its showing same issue in BSNL & Airtel sim. I ve tried all solutions except the rooting and also visited the Samsung care but still the problem persists. However both sim are working fine in other handsets.

  5. Well my SAMSUNG J1 has the problem..i cant access network settings and select my preferd network automatic or manually because the phone asks me to place the sim card in the first place,my sim works OK in another handset..its very distressing

  6. Hi everybody I’m stuck !!!!
    Problem after flash no backup made cos I’m dumb and guy on the forum says format and download !!!!
    I did it and since I get no sim detected but my sim is working !
    How I know this
    1. Put it in another phone, working 100%
    2. In my tablet when I go into service mode I see that it is present!
    My imei number was invalid fixed it with mtk engineering mode!
    When I go there I see my imei number and also I see beneath it IMSI unknown?????
    I also had vram error 0x10 but also fixed by rooting and putting in the files I downloaded ….nvram fix by skeely! That error isn’t showing no more!
    What can I do ? I googled a whole week and no posts referring to unknown IMSI and also no fix to my problem!
    By the way I reverted back to original ROM no fix!

  7. It’s showing error in application after every 5 seconds even if I replace my sim card and do every possible things that has to be done.. I donno what to do now

  8. rebooting doesn’t “fix” the problem it only sweeps it under the rug.
    it will happen again. mine does it so frequently my phone may as well be snapped in half.

  9. Sir I want to mention that, the problem of no detection of SIM card by the mobile device may occur due to physical wear of SIM (which happend in my case once).
    What happens actually that , the gold plates of the SIM are connected with eachother as metal weared out from both the plates and touches each other at the separation gap between the plates. The wearing happens due to friction between the plates of SIM and the connecting points on the SIM card slot (when SIM card is put in and out in the slot very often, this happens)
    So when the plates touch eachother it become shorted and not detected by the device . So also check SIM card whether this thing exists or not. If exists then using a thin blade scratch the gap between the gold plates of SIM and clean it and then try it again ……

  10. My phone doesn’t have a SIM card and that makes this a particularly screwy error. I’ve set the network from automatic to LTE/4G. Now I have to wait for a couple days.

  11. My sim card is working in another phones but not in mine. Network carrier is just lost nothing is written in carrier name .How can I fix this problem ?

    1. Hi Suzzane! Reset your network settings and restart your phone. If you changed your SIM recently, the phone that you’re using might be SIM locked.

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