In this blog post, Dreamcheeky has put together a few troubleshooting tips to help you get back up and running.
Why Does My Phone Say No SIM Card?
Your phone cannot read your SIM card contents properly, and this is why your phone does not show any SIM card errors. This happens when the SIM card isn’t installed correctly, is damaged, or if there are software issues after a software upgrade. The phone won’t recognize the SIM card and will display a message that no sim card was detected.
There are some things you can do on your phone that can help fix your SIM card problem. These fixes may not work. If they do, you can get your SIM card replaced.
How to Fix No Sim Card Error On Android
Reboot or Shut Down Your Phone
Hold the power button down until you see the Restart option. To restart your phone, tap on it.
This will fix many problems. If this doesn’t work, wait 30 seconds and restart your phone.
If that solves your problem, you can continue to turn off your phone and then switch it on. You should not reboot your phone until an Android update is available, or a carrier settings update is released.
Switch Your SIM Card On
You can also check if your SIM card has been switched on to resolve the SIM error in Android version 5.0.
Go to “Settings-> SIM cards & Mobile Networks” and ensure that your SIM is on.
This screen is for dual-SIM users. It allows you to make sure the SIM card you wish to use is on.
Change the Network Mode to Auto
Another option is to change the network mode from auto. This can be done by going to Settings -> SIM cards & mobile network -> Preference network type and selecting the first option, which will then be LTE/WCDMA/GSM (“auto-connect”).
Choose the Correct Network Operator
You will get the SIM card error if the network operator you are using isn’t the one you have selected in your Android device settings. You can verify that you have the correct one by going to Settings -> Mobile Networks-> Automatically Select Network. Once your Android device has finished searching, tap on your carrier.
Enter Your Network APN Settings Manually
If none of the above work, your SIM card may have lost connection to the network it was supposed to be connecting to. You may have to manually enter the APN settings for your network operator if this happens.
You can do this on an Android device with Android 9.0 Pie or higher. Go to “Settings -> SIM cards and networks -> Access points names”, then click the “+” icon.
You will need to contact your network provider for the APN settings. Or, check online to find out if your provider is published. You might also want to save your APN settings as a screenshot so that you can easily refer back to them in case of trouble.
Remove the SIM Card and Battery
You can also remove the battery, if possible, and the SIM card from your SIM card tray. Make sure your device is turned off before you begin. After you have removed everything, wait about one minute before you re-insert it.
It is common to drop your phone, but even though it did not sustain any damage, the SIM could have been lost. Many people have tried a cheap, unique way to make the SIM card fit tighter. This usually fixes the problem by making the SIM card fit snugly.
Also, be aware of SIM trays that are bent or misaligned. A slight misalignment could cause your SIM card not to properly connect to the internal contacts on your SIM tray.
Sometimes your SIM card is the problem, and not your phone. Ask a friend for their SIM card, and then insert it into your smartphone. If your phone detects the temporary SIM card, your SIM is at fault, and you will need a replacement.
If your phone cannot detect the replacement SIM card and you’re confident, there’s no damage to your phone’s tray or SIM. It’s likely that your phone is experiencing a software problem.
Try Using Your Phone in Safe Mode
Not all apps are created equal. Certain apps can do more harm than good, and this error will be caused. Boot your device into Safe Mode.
For a few hours, keep the computer in Safe Mode and check if this continues to happen. If you don’t, remember which apps were installed last time and then uninstall them. Try to exit safe Mode and check if the problem persists.
Fix the SIM Card Error by Clearing the Cache
It is very easy to clear your Android’s cache in order to fix the “no SIM card” error. You can clear your cache by going to Settings -> Storage-> Clear Data. To delete the cache, tap on “Delete”.
There would be a simple way to determine the cause of the no SIM card error. Unfortunately, you can only use the trial-and-error method until your Android device displays a message indicating the cause.
Reset Network Settings
Your phone’s network settings are what tell it how to connect with your carrier. You can reset your network settings to fix any issues with the settings.
- Step 1. Go to Settings > System > Reset options on your device.
- Step 2. Tap Reset Wi-Fi, mobile & Bluetooth.
Enable and Disable Airplane Mode
There is always the possibility that the “No SIM Card” error message doesn’t have anything to do with your SIM. You can test if your SIM card is functioning by inserting it into a different phone. It may be receiving signals from the new phone if it is not.
This could indicate that there has been a miscommunication between nearby cell towers or your original device. In such cases, Airplane mode may be the best solution.
Airplane mode turns off all wireless radios, including Wi-Fi and Bluetooth, when activated. Communication with cell towers will be cut off immediately. When you exit Airplane mode, your device will be forced to reconnect.
Airplane mode can be activated on your device by following these steps
- To open the notification screen, swipe down or up.
- Tap on “Airplane mode”, or “Flight mode.”
- In the dialog box, confirm that you want the Airplane mode activated.
- After about a minute, exit Airplane mode. Next, check if your SIM card is readable.
Turn Off The Radio
This could be caused by a problem with the radio signal. The following steps can be taken:
- Dial *#*#4636 #*#* to the dialer
- A testing menu will be displayed to you.
- Click here for phone/device information
- Run ping test
- Choose GSM Auto (PRL), from the drop-down menu
- Click on Turn off the radio
Update Your Software
Your android software version should be updated. Navigate to:
- Scroll to the bottom
- Choose Software Update
- Wait for the computer to restart before you proceed with the update
Reset your device to factory settings
Resetting to factory settings will wipe all of your data and also remove all third-party apps from your device. Before proceeding, please make sure you have a backup of all your files.
- Navigate to Settings
- Tap General Management
- Select Reset
- Tap Factory Reset
Replace your SIM card
Smartphones with a larger SIM card tray, particularly the most recent ones, have a tendency to be smaller. You may need to reduce the size of your SIM card.
Did you reduce a standard-sized SIM to micro or nano size? Take a closer look at your SIM Card if that’s the case.
You will need to replace your SIM card if there is damage to the gold plates.
Test your SIM card reader
Test it with another SIM card and verify that it works. If it doesn’t, your current SIM card may be defective.
If you don’t have the time or money to purchase a postpaid phone, there are many prepaid options that can be obtained in the short term.
Check the SIM tray
Now it’s time for you to verify that the SIM card has not been damaged. The card should be removed from the tray. If the card appears damaged, contact your carrier to request a replacement. Place the card back in the tray if it seems to be okay.
Blot any dust from the SIM tray, and gently wipe your SIM without damaging any parts.
If the problem continues, you can try a different SIM card and an unlocked Android phone. If all other SIM cards work well, it is likely that your SIM Card is the problem.
If this happens, contact your mobile carrier to request a replacement.
Contact customer service
Check your warranty for “service and repairs” if your phone was purchased from a service provider. You’re good if it is still within the warranty’s time limit.
Bring your phone to the service center when you visit them. They may ask for the IMEI number. It is possible for them to replace your SIM card, your slot reader or your device, depending on the nature of your problem.
Sometimes, all that is required by your carrier to activate the SIM in their database.
Uninstall problematic third-party apps
Third-party apps could be the cause of the “No Sim Card Detected On Android Phones” error. Run your device in Safe Mode to verify that it isn’t caused by third-party applications.
It might be an app that is causing the problem if it works. Safe Mode uses only system defaults to rule out third-party apps.
You can uninstall an app that you suspect is causing the problem if it is already installed. To determine which app is the problem, use the elimination and deduction process.
Go back to the original ROM
This could be why your issue is occurring if you’ve recently flashed your phone with another ROM. If there were no problems with the flashing of your phone’s ROM, it could be the reason for this issue.
The problem can be fixed by restoring the original ROM. You can do this by booting into Recovery Mode and then performing a factory reset. Next, go to “Backup & Restore” and then hit “Restore”.
Fix No Sim Card Error On Iphone
Causes of iPhone No SIM Error
There could be many reasons why the iPhone No SIM error occurs. The iPhone may not recognize your SIM card. This is what connects to these networks. Your SIM card could be slightly damaged, or your phone’s software may cause this problem.
You can display the “No SIM” error in many ways.
- No SIM
- No SIM Card Installed
- Invalid SIM
- Insert SIM
No matter what the error is, it is easy to fix it. All you need is a paperclip and some software settings. If your iPhone is saying “No SIM”, here’s how to fix it.
These instructions are applicable to all iPhones.
How to Find the iPhone SIM Card
SIM card problems can be fixed by knowing where it is located. This depends on the model of your iPhone.
iPhone, iPhone 3G and iPhone 3GS: Find the slot with a small hole between the sleep/wake button at the top and the headphone Jack at the bottom of the phone. This is the tray that holds the SIM card.
iPhone 4 or newer: The SIM tray can be found on the right side, just below the Side (or Sleep/wake) buttons. The iPhone 4S and 4S both use a microSIM. The later models use the smaller and more modern nanoSIM.
How to Fix the iPhone No SIM Error
Confirm You Have an Active Plan With Your Carrier
Although this may seem obvious, do you have an active plan with your cellular carrier? You won’t have the ability to send text messages, make calls or access a mobile network if you don’t.
Your carrier may have temporarily or permanently canceled your number if you haven’t used the SIM card or paid your bill in a while. To verify that your number is active and in good standing, check your carrier’s app. You might need another phone for this.
Turn On (and Off) Airplane Mode
If you aren’t traveling, this may seem strange. But is Airplane Mode enabled? The simplest way to fix network problems is to toggle your iPhone’s data. Airplane Mode will automatically disable any cellular signal when it is on. This can be a huge roadblock.
Open the Control Center, and switch Airplane Mode on or off to check this. After that, your phone should be able to receive signals from your Wi-Fi network and/or cell phone signal.
Restart Your iPhone
Confucius once stated, “try turning it off and back on again.” Sometimes, your SIM card might become invalid due to a small software glitch. This troubleshooting tip may be all you need to get your SIM card recognized by your iPhone, regardless of whether it is a force restart, soft reset, or hard reset.
For newer iPhone models (iPhone X or higher), hold down both the Volume Down button and the right side buttons until you see a Power Off slider. Drag the slider and wait for your phones to turn off.
To start an iPhone SE or iPhone 8, iPhone 7, iPhone 6, iPhone 5 or an older model, hold down the Sleep/Wake key (located at the top of the iPhone SE, iPhone 5, iPhone 6 and iPhone 7), until the Power Off slider appears.
Remove and Reinsert Your SIM Card and Tray
A fully functioning iPhone depends on the SIM card being correctly placed in the tray. It’s possible for the SIM card to have been moved around or accidentally inserted into the slot.
Turn off your phone first, then use a SIM card tray remover. You will be able to remove the card without causing any damage. You can purchase one from ZMSNTGS on Amazon for $2.99 if you don’t already have one.
Do you prefer to own more than one? For a fraction of the cost, you can purchase a ten-pack at iSYFIX. Either of these options should be much easier than using a paperclip.
After you have the remover in your hand, place it in the small hole on the tray. This is the right side for iPhone 4S and later. The top is for other phones. It could be that the tray was improperly inserted if it is difficult to remove.
Once the SIM card has been removed, you should inspect it carefully for scratches and other damage. Finally, wipe it clean with a soft cloth. Once everything is in order, place the SIM card in the tray again and insert it into your iPhone. You could cause further damage by being rough with it!
Please Note: Before you remove the SIM card, make sure that your iPhone is switched off. This is vital. After it is back, it should be properly inserted and closed up. Turn it on again to check if it appears. If it doesn’t, proceed to the next step.
Update the iOS
Sometimes, software bugs can cause your SIM card to look invalid or even disappear completely from your iPhone. Apple usually fixes these bugs quickly and releases a new version.
Go to Settings > General > Software Update and select Download and install if needed. For any reason, backup your iPhone before installing any updates.
Check for a Carrier Settings Update
Your carrier may also offer updates to improve your network’s connectivity, similar to Apple’s iOS Update. You may not only miss out on the latest technology offered by your mobile provider, but your SIM card could be damaged or even destroyed if you delay in updating.
Connect to Wi-Fi to check if there is a carrier setting update available. Next, go to Settings > General > About and then click Update if asked. You should see everything running after the Update. Let’s fix the “no SIM” problem if it is not.
Reset Your Network Settings
You might still be experiencing an invalid SIM card message. This could be caused by a software problem in your phone’s network settings. This applies to Wi-Fi, Bluetooth, cellular data, as well as any VPN.
Resetting your network settings is the best way to fix this problem. This will erase any Wi-Fi passwords that you have previously saved. Make sure to save any important passwords for later reference.
Navigate to Settings > General >Reset > Reset Network Settings. Enter your iPhone’s passcode and then click Reset Network Settings to confirm. If you are able to proceed, then your iPhone should be fine.
Try Another SIM Card
You’ve done everything you can to update, restart, and reset the device. Before we get into the details of resetting your device, please confirm that your SIM card is not the problem. Ask a friend for a SIM card or visit your carrier’s shop to request one.
If you get the error “No SIM”/”Invalid SIM”, it is likely that your SIM card has the problem. It’s time to have it replaced. If it doesn’t, it could be your phone.
here’s still one thing you can do before it gets fixed.
Factory Reset Your iPhone
If your phone still has SIM card problems after following the steps, you can try a factory reset to resolve it. You don’t need to redownload everything if you have backed up your phone to a compatible computer.
To factory reset your iPhone’s settings, open Settings > General > Reset > All Content and Settings. Once prompted, verify your identity with a Face ID, fingerprints, or a passcode. Next, select Erase iPhone.
Update Your Wireless Carrier Settings, Preferably Using iTunes On A Computer
You can plug your iPhone into your computer or use the computer of a friend to open iTunes. iTunes is my preferred method of updating your iPhone. iTunes checks if there are wireless carrier settings updates available and asks if you would like to install them.
You can also go to Settings-> General-> About on your iPhone to update the wireless carrier settings. However, there is no button to do so. If an update is available, your iPhone will check for it automatically. A screen will then appear in a few seconds.
Although I think iTunes is more reliable than using iTunes to check, network issues could prevent your iPhone from connecting to the update server.
Test for a malfunctioning SIM card
Your SIM card may be having a problem if your iPhone says it doesn’t have one. You can test this by inserting a SIM from another phone. You must use the right size SIM card for your phone, whether it is standard, microSIM or nanoSIM.
Contact Apple if All Else Fails
If the above steps resolve your SIM card issue, you can contact your carrier’s customer service team or reach out to Apple support.
Prices for a replacement SIM card vary depending on the mobile plan you have and the carrier you choose. Sometimes, a new iPhone may be the best option, especially if AppleCare is still available.
Keep in mind that setting up an appointment to visit the store-in-store can take some time due to COVID protocols. Apple will send you a replacement device if the original is damaged or covered.
If it’s not, they may provide packaging materials so that the old one can be sent out. Although it is a rare case, customers have been known to be able to get replacements from Apple.
There will always be problems with technology. It’s not something that cannot be fixed with some careful troubleshooting and a call to experts.
GadgetGone will gladly take your unused iPhone and give you some cash. We are proud to offer the best trade-in values in the buyback, personalized customer service, as well as a PriceMatch+ guarantee.
It is possible that your SIM card issues will be solved before you move on to the next step. It’s good to know that you have options in the event of a SIM card problem. Good luck!