How to Fix iPhone Sim Not Supported Issue?

Oct 14, 2021 • Filed to: • Proven solutions


There are more Android users in the world as compared to iOS. This is why you will see more Android apps and features. But this doesn’t mean Android phones are the best. iPhones are always known for their quality and technology.

The only issue is when it comes to using an iPhone, the security of the user comes on the top. This is why you often see an issue of sim not supported on the iPhone. Although this problem is common in 2nd handphones, sometimes it even comes with new iPhones. So how to fix this sim card not supported in iPhone 6, 7, 8, X, 11, and so on is difficult for many but simplified here.

Solution 1: Check your iPhone Settings

Suppose you are getting a message of sim not supported in iPhone. You are required to check your iPhone for carrier lock. For this, you have to go to settings and select “General” followed by “About” and finally “Network Provider Lock”. If the iPhone is unlocked, you will see “No SIM restrictions” as shown.

select “About”

If you are good with it, a sim card issue not valid on the iPhone can be due to inappropriate settings. In this case, you are required to check your iPhone’s settings. The best step to take under these circumstances is to reset network settings. This will let your iPhone’s cellular, Wi-Fi, Bluetooth, and VPN settings restore to default factory settings, thus fixing most bugs.

You can easily do so by going to “Settings” and tap on “General”.  Now you will see the “Reset”. Click on it, followed by “Reset Network Settings”. You will be prompted to enter a passcode. Enter it to continue.

select “Reset Network Settings”

Solution 2: Restart your iPhone

In many cases, there is a simple software bug that is preventing your sim card from being detected. In this case, a simple restart will do the job.

iPhone 10, 11, 12

Step 1: Press and hold together the volume button (either) and side button until you see the power off slider.

press and hold buttons together

Step 2: Now, you are required to drag the slider and wait for about 30 seconds to turn off the device. Once turned off, press and hold the side button (right side) of your iPhone until the Apple logo appears.

iPhone 6, 7, 8, SE

Step 1: Press and hold the side button until you see a power-off Slider. 

press and hold the side button

Step 2: Now drag the slider and wait for about 30 seconds to turn off the device completely. Once turned off, press and hold the side button until the Apple logo appears to turn on your device.

iPhone SE, 5 or earlier

Step 1: Press and hold the top button until you see a power-off slider.

press and hold the top button

Step 2: Now, all you need to do is drag the slider until the power-off logo appears. Wait for about 30 seconds for your device to turn off. Once turned off, press and hold the top button until you see an Apple logo to power on your device. 

Solution 3: Update iOS System

Sometimes your iPhone is not updated to the latest iOS version. In this case, the possibility of a sim card not supported in the iPhone is high. But you can easily fix this issue by simply upgrading your iPhone to the latest available iOS version. The chances are high that the new update will be free of several bugs preventing your iPhone from detecting the SIM.

Step 1: If you have received a new update message, you can directly tap “Install Now” to proceed. But if not, you can do it manually by plugging your device into power and connect to a certain Wi-Fi network. 

Step 2: Once connected, go to “Settings” and tap on “General” followed by “Software Update”.

select “Software Update&rdquo

Step 3: Now, all you have to do is to tap “Download and Install”. You will be asked for a passcode. Enter it to proceed.

select “Download and Install&rdquo

Note: You may receive a message asking you to remove some apps to free up the storage temporarily. In this case, select “Continue” as the apps will be reinstalled at a later stage.

Solution 4: Make an Emergency Call

Making an emergency call is one of the best solutions to fix a sim card not supported in the iPhone. Although it sounds tricky, you can easily bypass a sim not supported in iPhone 5, 6, 7, 8, X, 11, and so on. All you have to is 

Step 1: Press the home button on the iPhone activation screen and select “Emergency Call” from the pop-up menu.

select “Emergency Call&rdquo

Step 2: Now, you have to dial 911, 111, or 112 and disconnect immediately once it is connected. Now you have to press the power button and go back to the main screen. This will bypass the Sim not supported error and will force your sim card to be supported.

Solution 5: Use Dr.Fone System Repair

Although when it comes to repairing iOS devices, iTunes comes to mind. But iTunes is good when you have a backup. There are several instances when you don’t have a backup, or even iTunes couldn't fix the malfunctioning issues. In this case, iOS system repair software is a good option to go with.

Dr.Fone iOS system repair is the one you can go with. It can easily fix any iOS system issue and helps you to get your device back to normal. It doesn’t matter whether you have no sim card issue, black screen issue, recovery mode, white screen of death, or any other issue. Dr. Fone will let you fix the issue without any skills and within less than 10 minutes.

Moreover, Dr.Fone will update your device to the latest iOS version. It will update it to a non-jailbroken version. It will also be re-locked if you have unlocked it previously. You can easily fix the no sim card issue on the iPhone using simple steps.

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Step 1: Launch Dr.Fone and connect iPhone to the computer

Launch Dr.Fone on the system and select “System Repair” from the Window.


Now you have to connect your iPhone to the system using the lightning cable. Once your iPhone is detected, you will be provided with two modes. Standard Mode and Advanced Mode. You have to select the Standard Mode as the issue is smaller.


You can also go with the Advanced Mode in case Standard Mode will not fix the issue. But do not forget to keep a backup of the data before proceeding with the Advanced mode, as it will erase the device data.

Step 2: Download the proper iPhone firmware.

Dr.Fone will detect the model type of your iPhone automatically. It will also display available iOS versions. Select a version from the given options and select “Start” to continue.


This will begin the process of downloading selected firmware. This process will take some time as the file will be large. This is why you are required to connect your device with a stable network to carry on the process of downloading without any interruption.

Note: If the downloading process doesn't start automatically, you can start it manually by clicking on the “Download” using the Browser. You are required to click on “Select” to restore the downloaded firmware.


Once the download is finished, the tool will verify the downloaded iOS firmware.


Step 3: Fix iPhone to normal

Now all you have to do is to click on the “Fix Now”. This will begin the process of repairing your iOS device for various issues.


It will take a few minutes to complete the process of repairing. Once it is completed, you have to wait for your iPhone to start. You will see that the issue is fixed.



Sim not supported under activation policy is a general issue that often comes with used or new iPhones. In this case, you can insert the sim correctly and see if the issue is fixed. If not, you can go with the solutions that are provided here. If still, you cannot fix the issue then the possibility of hardware failure is high.

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