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SIM Failure or No SIM Card on iPhone 13? Here's the Real Fix!

Feb 29, 2024 • Filed to: Mobile Repair Solutions • Proven solutions


NowPeople who have used iPhone once rarely switch back to Android phones. There are multiple features in iPhone that attract people. One factor that never ceases to amaze iPhone users is its beautiful shape and wide range of classy colors.

Another benefit that just iPhone users can enjoy is related to its SIM. With the e-SIM on iPhone, you can activate a cellular plan without needing any physical SIM. The fact that physical SIM has its benefits also carries some problems. The article understudy will guide you about various SIM failures on iPhone 13.

Part 1: What Causes SIM Failure on iPhone 13?

iPhone users have a slight edge because they can work without physical SIM cards on their phones. This edge is beneficial because mobile users generally face SIM card failure. The question here is, why do SIM card failures occur on iPhone 13? If this question seems interesting to you, then this section will draw your attention. Let’s talk a little about the causing factors for SIM card failure.

· SIM Card Tray

SIM is connected to your iPhone through the SIM card. The most common cause for SIM failure on iPhone 13 is moved SIM card or moved tray. If your SIM is not placed correctly on the tray or the tray is moved in both cases, you will face SIM card failure.

· Damaged SIM Card

Another factor that aids in SIM card failure in iPhone 13 is the damaged SIM card. If the SIM card that you are using is somehow damaged, it will not be detected properly, and it will cause a problem.

· Malfunctioning of System

Not every time the SIM card causes trouble. Sometimes, it's the system itself. One reason for SIM failure is when the iPhone is problematic, it does not detect the SIM and causes the problem.

· Problematic Software Update

Although software updates are supposed to provide a better and improved system, sometimes, the updates are glitchy and have bugs. In case you have installed any glitchy update, then most likely, you will have SIM card failure.

· Active Plan

When you are talking about SIM card failure on iPhone 13, how can you forget to check your plan? You need to have an active plan with your wireless carrier for a properly working SIM card.

Part 2: What to Do If Your iPhone 13 Says No SIM Card?

Now that you know what factors cause the SIM failure on iPhone 13, you can easily avoid them to save yourself from the problem. If not that, then you can detect the root of the problem. Is this all you will learn about SIM failure? No. The section coming below will share different fixes that you can follow to resolve the trouble of SIM card failure.

1. Check if SIM Malfunctions

We usually purchase one SIM and then use it for the rest of our life. Not realizing the fact that SIM gets old and old SIM is an expert for throwing weird and unexplained errors. For this reason, if your SIM card fails on iPhone 13, then you must try to use it on some other device and check if it is working properly or not.

2. Check your Activation Error

iPhone 13 has great demand. In case your SIM card is not working, you should wait and check for an activation error. This is because your service provider might have a lot to handle. As a greater number of devices are going live simultaneously, it's hard to activate them all. Since this problem is carrier-dependent, nothing much could be done except for waiting.

3. Reset the SIM Card

Among the common reasons that cause SIM failure, one is when the SIM is poorly seated on the SIM card. The best thing to do whenever you face a coverage problem, dropping calls, or activation error, is simply to take out the SIM card with a card ejector. Clean the card with a dry microfiber cloth and then reinsert and reset the card on the tray. Check your phone to see if the problem has been resolved or not.

4. Play with Airplane Mode Settings

This might sound strange, but most iPhone users have tried this, and it works. Turning off the Airplane mode and then turning it back on actually does the job. If you have never used the Airplane mode before, then take guidance from the steps below.

Step 1: To enable the Airplane mode, you need to access the "Control Centre". For that, from the top right corner of the screen, swipe down. From the Control Centre, locate the "Airplane Mode" icon and click on it to enable it.

enable airplane mode

Step 2: After a few seconds of enabling it, you can now disable it in the same way.

disable airplane mode

5. Reinsert SIM

As has been mentioned in the causes sometimes improper seating of SIM on the SIM tray can cause the problem. So, the best possible solution to follow in order to fix this trouble is to reinsert the SIM card. You can reset the SIM card and restart it for better performance.

6. Restart your iPhone 13

Don't panic if your iPhone 13 says something about SIM failure. This is a very commonly faced problem with multiple fixes. It has been observed that by restarting your iPhone, you can get rid of the SIM failure, but the question is, do you know how to restart iPhone 13? If not then keep reading.

Step 1: To restart your iPhone, firstly press and hold either of the Volume buttons with the Side button simultaneously.

Step 2: By doing this, a slider will appear on the screen saying 'Slide to Power Off.’ Move this slider to the right side to turn off your mobile device. Now, press and hold the ‘Power’ key; this will turn on your mobile again.

slide to power off

7. Check the Network Coverage

On iPhone 13, no matter how good or poor your network, the antenna bands always show a steady connection. It is tough to use cellular services like calling and texting with poor coverage. To get rid of this problem, you should check the cellular tower bands on the mobile screen. If they are flickering, then move to an area where they don’t flicker to get better coverage.

8. Factory Reset your iPhone 13

Another fix that could be used to resolve the issue of SIM failure on iPhone 13 is to factory reset your mobile. Don’t worry if you have never done this before. Just follow the simple steps shared below to factory reset your phone.

Step 1: To factory reset your phone, start by launching the 'Settings' app. Then from the menu list, locate and select the 'General' option. Scroll down in the ‘General’ tab and click on 'Transfer or Reset iPhone.'

access transfer or reset iphone option

Step 2: A new screen will show up from where you have to select the option of ‘Erase All Content and Settings.'

tap on erase all option

Step 3: A prompt message will appear asking you to confirm your identity either with a passcode or face identity. Do that and select the "Erase iPhone" option.

confirm iphone password

9. Look for iOS Update

Most of the time, iPhone problems are caused by outdated iOS versions. To avoid this, you should regularly check for iOS updates. In case any update is available, get it installed to stay up to date. To know more about this, take help from the steps given below.

Step 1: To check for iOS updates, first open the "Settings" app and then select the "General" option. In the General tab, look for the option of "Software Update" and click on it.

click on software update

Step 2: In case there is any update available, just "Download and Install" it.

update your ios

10. Reset Network Settings

If your SIM card is facing problems with iPhone 13, then another workable solution is to Reset Network Settings. This might sound confusing, but its simple steps are added below.

Step 1: Start by launching the "Settings" app on your iPhone and moving to the "General" tab.

access general tab

Step 2: Then, scroll a little and look for "Transfer or Reset iPhone". A new screen will show up, move to the end and select the "Reset" option. There, just click on "Reset Network Settings" and enter your security lock, if asked.

select reset network settings

Step 3: Lastly, confirm your reset network by selecting the option of "Reset Network Settings".

confirm reset network settings

11. Check your Plan

It is essential to have an active plan with a cellular carrier. If your SIM card is failing on iPhone 13, then you should check whether your plan is active or not because you cannot use any cellular service without an active plan.

12. Update Carrier Settings

Sometimes the SIM card failure is due to the carrier settings because they might need an update. If this is the case, then you shouldn't wait for long. Quickly update the carrier settings by following the steps shared below.

Step 1: To update Carrier Settings, first open the "General" tab from the "Settings" app. From there, open the "About" section and locate the "Carrier" option.

tap on about

Step 3: In case a new version is available, you will be asked to update.

click on update

13. Contact Apple

Something from the above fixes must work, but if nothing works, the last option is to contact Apple Support. If your SIM card is failing on iPhone 13, then no one can help you better than Apple Support.

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Part 3: How to Fix SIM Failure or SIM Card Lock via Dr.Fone - Screen Unlock?

Do you know that Apple has partnered with many mobile providers to launch contract phones and SIM plans such as boost mobile, Vodafone and T Mobile, etc? It means you can only use a specific SIM card carrier and payment plan based on the contract. Therefore, for these contract iPhone users who want to switch to another network carrier or use SIM card in another country, they may encounter a SIM lock situation. The good news is that Dr.Fone - Screen Unlock (iOS) can help solve the problem quickly and easily.

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Note: For SIM unlock, the supported device is iPhone 5S to iPhone X running iOS 12.0 to iOS 14.8.1.

Step 1. Turn to the homepage of Dr.Fone - Screen Unlock and then choose "Remove SIM Locked".

screen unlock agreement

Step 2. Make sure your iPhone has connected to your computer. After confirming all device information, click on "Unlock Now" to continue. Then follow the Jailbreak Guide to jailbreak the device for Sim unlock.


Step 3. Follow the on-screen instructions to reinsert the SIM card and click "Continue".

screen unlock agreement

Step 4. You will see the program is removing the Sim lock, wait patiently and keep your device connected.

screen unlock agreement

Step 5. Now, the sim lock is removed successfully!

screen unlock agreement

All you need to do is obey the guides. If you want to know more about our service, welcome to visit the iPhone SIM Unlock guide.

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Concluding Thoughts

If you are struggling with SIM card failure on iPhone 13, then your bad days are over. By reading this article, you will learn about the fixes that will resolve your problem. A lot of different solutions have been shared.

However, if these methods don't resolve the issue, we recommend using Dr.Fone - Screen Unlock (iOS). This tool is effective in managing a variety of iOS issues, potentially providing the fix your device needs.

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