How to Fix ‘Sim Card Not Working’ on iPhone 13 (2023)

The iPhone 13 has launched and is now available at your nearest Apple Store, carrier stores and online stores. The four 13-series phones are the best iPhones Apple has created thus far, obviously, which has drawn unprecedented fanfare. Unfortunately, unboxing and setting up your device are only part of the story. You cannot enjoy your new iPhone — call your favorite people — if your SIM card does not work as it should.

Today, we will take a look at the reasons behind iPhone 13 SIM card issues and help you come up with a solution. Now, let us get to it.

Contents show

Why is SIM card not working on iPhone 13?

SIM card issues have always been common on iPhones and iPhone 13 is no exception. ‘Invalid SIM’ or ‘no SIM’ error messages are more frequent you might think and their solutions are From poor seating and e-SIM/physical SIM interferences to botched software updates and activation errors, there can be many reasons behind SIM card issues on iPhone 13. In the section below, we will check out the issues in brief and discuss the solutions in detail.

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13 Ways to fix SIM card issues on iPhone 13

Fix #1. Check for activation error

As we have mentioned, iPhone 13 has unprecedented demand in the United States. With so many devices going live at once, your network service provider might be having a hard time activating them in time. This could lead to activation errors, which are generally automatically resolved after a few hours. Since these issues are carrier-dependent, you — the user — cannot do much to fix them by yourself.

If your iPhone 13 does not activate automatically, be sure to contact your network service provider. They would be able to tell you what the problem is and hopefully give you the correct solution.

Fix #2. Check for a carrier settings update

How to Fix ‘Sim Card Not Working’ on iPhone 13 (1)

When a new phone is released, service providers often roll out updates to their network settings. When that mismatch happens, you can run into ‘Invalid SIM card’ or ‘No SIM’ error message. To make sure there are no pending updates for your device, all you have to do is go to Settings, tap on ‘General,’ and open ‘About.’ Updates, if available, would be installed right away.

Fix #3. Last Line No Longer Available iPhone 13

The ‘Last Line No Longer Available’ Error seems to pop up when a user is about to make a call on their iPhone 13 upon activating it for the very first time. Based on previous instances, this issue appears to be a bug that’s somehow related to the e-SIM functionality on some newer iPhones. An e-SIM is a digital SIM that enables the dual-SIM option on the newer iPhone models like iPhone 13 series, iPhone 12 series, iPhone 11 series, iPhone XR, and iPhone XS/Max.

Users who are facing the ‘Last Line No Longer Available’ Errorreportthat they’re alerted about the error as soon as they’re about to make a call from their default line through the Phone app’s recent logs. The default line is the SIM you prefer to use to make calls and send messages to people you haven’t saved as contacts.

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Fix #4. Reset network settings

How to Fix ‘Sim Card Not Working’ on iPhone 13 (2)

If the toggling Airplane Mode and restarting your device do not work out, you should strongly consider resetting your network settings. First, go to Settings and tap on ‘General.’ Now, go to ‘Reset’ and tap on ‘Reset network settings.’ Confirm your action and restart the device.

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Fix #5. Re-insert SIM card

A poorly-seated SIM card can make life impossibly difficult. Dropped calls, no coverage, and activation errors are caused by them. So, it is always a good idea to check if the card is seated properly.

Just remove your SIM using the SIM ejector tool, take out the SIM card, wipe the card with a dry, cotton/microfiber cloth, and re-seat. Re-insert your SIM to see if it has fixed the issue.

Fix #6. Turn Airplane Mode on and off

How to Fix ‘Sim Card Not Working’ on iPhone 13 (3)

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The Airplane Mode should ideally be used when you are on a plane, but it seems to work wonders when it comes to connectivity issues. Pull down the quick access panel from the top-right corner of your screen and then tap on the Airplane button. This will turn on Airplane mode and cut off all networking connections, including cellular and Wi-Fi.

Then, pull down the quick access panel once again and tap on the Airplane Mode button to turn it off. Your cellular connection should reset and help you fix minor SIM-related issues.

Fix #7. Restart your iPhone

How to Fix ‘Sim Card Not Working’ on iPhone 13 (4)

When in doubt over a SIM card issue, it is best to give your phone a quick restart. To restart your iPhone, press down either of the two volume keys and the Side key together. The ‘Slide to turn off’ button would appear at the top. Drag the button all the way to the right to turn off your device.

After it is turned off, press and hold the Side key to turn it back on again.

Fix #8. Check if you have network coverage

The antenna bands on the iPhone 13 are capable of keeping a steady connection even in the most challenging areas. However, being in an area with poor network coverage is likely to keep you from using your SIM card for general calling and texting. It can even keep your iPhone 13 from being activated.

Check the cellular tower bands at the top-left corner of your screen to check your coverage. If the network bar is flickering, move to an area with better network coverage and try again.

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Fix #9. Look for an iOS update

How to Fix ‘Sim Card Not Working’ on iPhone 13 (5)

Some issues also have to do with iOS updates. Generally, these issues are resolved with software updates, which is why you should keep your device updated at all times. To look for an update, open Settings and then tap on ‘General.’ Next, tap on ‘Software update’ to look for an update and hit ‘Download & install’ if an iOS update is available.

Fix #10. Check for SIM card malfunction

If you running a rather old SIM card, you should check it with another device. Old SIM cards are notorious for throwing unexplained errors, which is why it is important to check whether it is your SIM card at fault. You should also clean your SIM card tray for debris while you are at it.

Fix #11. Factory reset iPhone

How to Fix ‘Sim Card Not Working’ on iPhone 13 (6)

Factory resetting is not generally something we recommend, but it does fix unexplained bugs most of the time. To reset all settings, first, go to Settings and then open ‘General.’ Next go to ‘Reset’ and hit the ‘Reset all’ option. Confirm your action to allow Apple to start resetting your iPhone.

Fix #12. Check for eSIM/Physical SIM interferences

If you are seeing “Last Line No Longer Available” error on your dual-SIM iPhone 13, chances are you are facing a conflict between eSIM and physical SIM. When this happens, your network drops, and you are unable to make any calls with that number. It is a rather complicated problem in itself with its own set of solutions.

Click on this link to learn all about solving “Last Line No Longer Available” error on iPhone 13.

(Video) My iPhone Says No SIM Card! Here's The Fix.

Fix #13. Contact Apple support

No luck with any of the solutions mentioned above? You should get in touch with Apple support and get to the bottom of it. Click on this link to connect to Apple support and hopefully fix your SIM card-related issue.

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FAQs

Why is the SIM card not working on my iPhone 13? ›

Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly. Try using another SIM card. If you don't have one, go to your carrier's retail store and ask them to test with another SIM card.

How do I get my SIM card to work in my iPhone 13? ›

Install a physical SIM
  1. Insert a paper clip or SIM eject tool into the small hole of the SIM tray, then push in toward iPhone to eject the tray. ...
  2. Remove the tray from iPhone.
  3. Place the SIM in the tray. ...
  4. Insert the tray back into iPhone.
  5. If you previously set up a PIN on the SIM, carefully enter the PIN when prompted.

Why is my SIM card not working iPhone no service? ›

Go to Settings > Cellular and check to see if your cellular line is turned on. If your cellular line is off, turn it back on. Then check to see if you have service. If you don't see your cellular line in Settings > Cellular, you should set up an eSIM or insert a physical SIM card.

How do you fix an iPhone 13 that says SIM not supported? ›

How to Fix SIM not Supported on iPhone 14/13/12/11
  1. Quick workarounds to bypass SIM not supported on iPhone.
  2. Force restart your iPhone.
  3. Reset Network Settings.
  4. Check for iOS updates.
  5. Bypass iPhone SIM not supported with iTunes.
  6. Contact your carrier and request an unlock.
7 Sept 2022

Why is my phone not reading my SIM card? ›

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.

Why is my phone not reading its SIM card? ›

The reason why your phone show no SIM card error is that your phone is unable to properly read the contents of your SIM card. This usually happens when your SIM card is not installed properly, it is damaged, or your phone has software problems after a software update.

Does iPhone 13 need special SIM? ›

iPhone 13 models and earlier also have a SIM tray for a nano-SIM card. You can use a nano-SIM card from a network provider. iPhone 13 models support Dual eSIM. You can set up a mobile data plan with an eSIM with certain iPad models.

Do I need to put my old SIM card in my new iPhone 13? ›

Since your SIM card is essential to get network connectivity on your device, you must transfer it to your new iPhone. The process is pretty simple and you can even get your contacts with it.

Does the new iPhone 13 need a SIM card? ›

iPhone 13 devices purchased from Apple do not have a pre-installed 5G SIM card and are recommended to be activated with an eSIM (electronic SIM card).

How can I fix no SIM problem? ›

Clearing your Android's cache to try to fix the no SIM card error is extremely simple. Go to “Settings -> Storage -> Clear Data.” When you tap on cached data, you'll get a pop-up telling you that this is going to clear the cache for all the apps on your device. Just tap on “Delete” to go through with it.

Why is my SIM card not working at all? ›

Clean the SIM card by blowing off dust, or use a soft cloth to carefully remove any residue from the gold contact area (don't use soap or anything abrasive). Place the SIM card chip-side down into the tray and slide it back inside. If inserted correctly, the tray should go in easily. Restart your phone.

Does iPhone 13 have two SIM cards? ›

All iPhone models that support eSIM can have multiple eSIMs and use Dual SIM with two active SIMs at the same time. You can use Dual SIM by using a physical SIM and an eSIM. iPhone 13 models and later also support two active eSIMs. iPhone models without a physical SIM tray support two active eSIMs.

Do I need a new SIM for 5G? ›

Will a 5G device work with my current sim? Yes, your 5G device will be able to use a 4G sim to receive 4G/3G/2G coverage whenever it needs to. But if you want to use our 5G network, you'll need to swap to a 5G sim.

Can I use my iPhone 7 SIM card in iPhone 13? ›

Yes you'll need a new SIM card for your iPhone 13 to get 5G functionality, but your old sim from your 7 will work fine too - just won't get 5G.

What happens if I put my old SIM card in my new phone? ›

Yes, as long as it is the same size, you can use your old one in a new phone and no additional steps for activation are required.

Do iPhone 11 and 13 use the same SIM card? ›

You can use Dual SIM with the following: iPhone XR, iPhone XS, iPhone 11, iPhone 12, iPhone 13, iPhone SE (3rd generation), and iPhone 14 (purchased outside the U.S.); these models can use one physical SIM and one eSIM.

Why is my SIM not working on new iPhone? ›

If you use a SIM tray from a different model of iPhone or iPad, or from another phone manufacturer, it may not fit correctly. Try using another SIM card. If you don't have one, go to your network provider's retail store and ask them to test with another SIM card. You may need to replace your SIM card.

Why is my SIM card not working when I put it in? ›

Clean the SIM card by blowing off dust, or use a soft cloth to carefully remove any residue from the gold contact area (don't use soap or anything abrasive). Place the SIM card chip-side down into the tray and slide it back inside. If inserted correctly, the tray should go in easily. Restart your phone.

Will my old SIM work in a iPhone 13? ›

Transferring SIM card to new iPhone 13 is extremely simple and you should not encounter any issue if you have a SIM ejector tool. You can find the SIM ejector tool in your iPhone's package or use a pin otherwise. Just place your old device first and take out its SIM tray with a tool.

Does the iPhone 13 require a new SIM card? ›

iPhone 13 devices purchased from Apple do not have a pre-installed 5G SIM card and are recommended to be activated with an eSIM (electronic SIM card). 5G Devices purchased from Verizon include a pre-installed 5G SIM card.

Should I get a new SIM card for iPhone 13? ›

Rather than using physical SIM cards, however, all iPhone 13 models sold by Apple use eSIM tech. As Apple explains on its support site, "To activate your iPhone, turn it on, connect to a Wi-Fi network, and follow the onscreen instructions." It'll connect to your wireless carrier like any other smartphone.

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