Samsung S24, S24 Plus, or S24 Ultra Sim Card Not Working or Detected: How to Fix?

Samsung has launched its new flagship smartphone, the Samsung Galaxy S24 Series, in the market that brings new Galaxy AI features to the device. This device comes under the most premium segment, offering custom-friendly software and hardware. Despite its new Galaxy AI features and other qualities in hardware and software, there are instances when you might encounter issues with your device.

Many users have encountered an issue with their Galaxy S24 lineup, stating that the SIM card is not working or detecting, and they cannot make calls or send messages. This can be quite unfortunate, especially when you want to make an urgent call and a message appears that indicates – “SIM Card not found” or “SIM Card not detected”! However, it’s very common to encounter such issues with the newly released device, but even the best smartphones can face minor issues and glitches related to SIM cards.

So, when a message appears on your phone screen that indicates – a SIM Card not detected or anything like that, it means that you can’t make any calls, can’t send or receive messages, and even you can’t access cellular data at the same time. Therefore, if you have recently bought the Galaxy S24 lineup and started encountering issues with SIM cards, then worry not. We are here to help you. The SIM card not working or detected is a temporary issue that can be fixed easily with some effective methods. Here, we will share some workable methods to help you address the issue.

Why SIM Card Not Working or Detected on Samsung S24, S24 Plus, or S24 Ultra?

It can be frustrating when you insert your SIM card to a newly released device and then it’s not working and showing an error message instead. Well, it’s a common cause where many users have encountered the same problem on their Android smartphones, and at the same time, they have reported the issue on many platforms including Samsung.

Generally speaking, your Galaxy device isn’t detecting a SIM card due to many reasons including your SIM card isn’t properly placed, technical glitches, or a hardware issue. In other cases, the SIM card will not show on your device if you have disabled it from your phone settings. But typically, the problem appears due to improper placement of the SIM card, or even if it’s physically damaged or faulty.

Methods to Fix SIM Card Not Working or Detected on Samsung S24, S24 Plus, or S24 Ultra

Now that you have pointed out the reasons, it’s time to troubleshoot the problem related to the SIM card not working or detected on your Samsung Galaxy S24, S24 Plus, or S24 Ultra. By following the below methods, you will fix the SIM card not working issue effortlessly. Let’s get started!

Method 1: Toggle Airplane Mode

If your SIM card is not working or detected on your Galaxy S24 lineup then you should toggle Airplane mode. Airplane Mode plays a crucial role when it comes to refresh the network connections and reload the cellular data. In case you encounter issues with the SIM Card and it’s not working or detecting, then turning on and turning off the Airplane Mode will save you from the issue.

All you have to do is bring up the Notification Panel by swiping from the top of the screen and look for the Airplane Mode icon. Once you find it then tap on it and wait for a while. After that, tap on the Airplane Mode icon back to disable it and check if the network is showing on your device. If it’s not, move to the next method.

Method 2: Configure Network Mode

Every smartphone comes with two slot SIM cards, allowing you to access multiple networks, including 3G, 4G, and 5G services. All of these network’s functions depending upon the brands, and not every service supports all the brands. Now 5G services have entered the market and most users switched their SIM card to the 5G network to get the fastest data. Therefore, it’s best to configure network mode on your phone to enable all the network modes, so it can connect to the available network easily.

Here’s how to configure network mode on your Galaxy S24 series:

1. Head to the Settings app and tap on Connections.
2. Tap on Mobile networks.
3. Here, you will see Network Mode. If you have two networks then you will see two Network modes for each one.
4. Tap on the Network mode and then select 5G/LTE/3G/2G (auto connect).
5. Now your device will search for the available network and then it will get connected to the available network.

Method 3: Restart Your Phone

Oftentimes, the problem that you’re having with your SIM card occurs due to a glitch or software issues. Such issues or glitches may happen from time to time. So, it is very common to encounter issues with your device including SIM card not working or detecting. To address the issue or glitch on your Galaxy device, it’s best to restart your phone. This will remove the software issues and temporary glitches from your device.

If the SIM card is not working or detected on your Galaxy S24, S24 Plus, or Galaxy S24 Ultra then restart your device at once and check whether the issue has been resolved or not. It may probably solve the problem if your SIM card is not working mainly due to issues or glitches. Unfortunately, if it doesn’t work for you, then move to the next method.

Method 4: Enable SIM Card From Settings

You may have disabled the SIM Card slot accidentally from the settings, resulting in the SIM card not working or detecting. You must check and enable the SIM card slot from your settings app.

To enable SIM card from settings, follow the steps below:

1. Open the Settings app on your phone and tap on Connections.
2. Tap on Mobile networks > SIM Manager.
3. Now, you will see the SIM Card. Tap the toggle next to it to enable them if it’s already disabled.
4. Check if the network connection is showing on your phone.

Method 5: Reset APN Settings

At certain times, the Access Point Names (APN) settings might be the real culprit, and to fix that, you can reset APN settings on your Galaxy smartphone to fix the SIM card not working or detected issue. Here’s how to reset APN settings on the Galaxy S24 series:

1. Open the Settings app on your phone and navigate to Connections.
2. Tap on Mobile Networks> Access Point Names.
3. Next, tap on the three dots at the top right corner.
4. Then, select the Reset to default option, and it will reset APN settings.

Method 6: Reset Network Settings

If resetting the APN settings doesn’t work, then you can reset your network settings on your handset. This will reconfigure your network to the default state and solve the issue related to your network. Sometimes, incorrectly configured network settings stop your phone from detecting the SIM card or establishing a network connection. To fix it, reset network settings on your Galaxy S24 series. Here’s how:

1. Open Settings and go to General management.
2. Tap on Reset > Reset mobile network.
3. Then, tap on Reset settings.
4. If prompted, enter the password, PIN, or pattern to proceed further.
5. Once done, check whether the SIM card is detected or not.

Method 7: Remove and Re-insert the SIM Card

There’s a chance that you placed the SIM card improperly on the SIM tray, which is why it is not working or being detected by the device. If the SIM card is not detected, you won’t be able to make calls, send messages, or use cellular data. In that case, we suggest you remove and re-insert the SIM card.

Nowadays, the size of the SIM card comes in Nano, or Micro SIM, which are too small when compared to the previous SIM card size. However, it isn’t easy to check for correct orientation. Take a SIM ejector tool or a paperclip and remove the SIM card tray from your Galaxy S24 lineup. Then, take a dry cloth and clean your SIM card gently, especially on the yellowish part to make it readable.

Once you are done with the cleaning process, then insert your SIM card back into the tray and make sure the SIM card is properly placed and it is located in the right direction. After that, check if the device detects your SIM card. You can identify it by checking the signal strength at the top of the screen. In case the SIM card is not detected by the device, move to the next solution.

Method 8: Update Your Phone Software

In most cases, many software issues and even bugs appear on the device, resulting in performance issues. But a question arises: Will updating the software solve the SIM card issue? Absolutely, yes. If your phone software is outdated or corrupted, it may prevent your phone from detecting the SIM card, and it won’t recognize the SIM card anymore.

To address the problem, you should update the software of your Galaxy phone, which is currently running on the latest One UI 6.1, based on the Android 14 software. But the good thing is Samsung keeps pushing the updates for their flagship smartphones to improve their overall performance and efficiency. Therefore, we suggest you check for software updates and install it by downloading the pending updates. This will help you fix the SIM card that is not working or detected on your Galaxy S24 lineup.

Method 9: Test the SIM Card on Another Phone

If you verified the SIM for physical issues or damages on the front, such as bent or corrosion, you should remove the SIM card and check it on other smartphones. This should help determine whether the problem is with your phone or SIM card. If the SIM card does not work on another device, then it means your SIM card is physically damaged, and you need to inspect it for any scratches or stains.

If your SIM card appears damaged, we suggest you contact your carrier and get it replaced with another SIM card by keeping the same number. If the SIM card works on another phone, there’s an issue with your smartphone’s hardware.

Method 10: Check for Hardware Problem

If there’s an actual issue with the internal hardware components and even software, then your SIM card will not work or be detected. It could be possible that your SIM card slot and other internal components have been physically damaged, preventing your SIM card from recognizing. If this is the case, you may need to take your device to the service center to get it fixed.

Additionally, you can download any apps for testing the hardware components of your device to verify whether the hardware components are damaged. Multiple apps are available on the internet, where you can find out and test it easily.

Method 11: Contact Your Carrier

Even though the SIM card is not working on other smartphones, it might be physically damaged. In that case, you must contact your carrier support for further assistance regarding the issue. They will suggest you replace the SIM card with the same number. If you’re confirmed that your SIM card is damaged, then you can directly replace it by keeping the same number.

Method 12: Reach Out to Samsung Support

If you don’t find the above methods helpful or if there’s an issue with the hardware components on your Galaxy S24 series, you should reach out to Samsung support for further help. Whether the issue is with the hardware or software, they’ll guide you with their best strategies to address the SIM card not working or detected problem.

Alternatively, you can visit a nearby service center for further assistance. If there’s an issue with the hardware components and your device is under the manufacturer’s warranty, you’ll get a replacement for a new one.

That’s it, guy’s. We assume this guide was helpful to you. Let us know in the comments section below if you have any queries.