5 Ways to Fix iPhone 16e/SE 4 Sim Not Working

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By Jenefey Aaron

2025-02-20 / iPhone SE 4

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The iPhone 16e/SE 4 has arrived, offering improved features and performance. However, some users have encountered a frustrating issue: SIM problems, such as "No SIM," "SIM failure," or issues with connectivity. These problems prevent your device from properly detecting the SIM card, blocking calls and mobile data access. If you're facing SIM issues on your iPhone 16e/SE 4 or any other iPhone, don't panic. In this guide, we’ll walk you through the common causes behind SIM errors and provide practical solutions to help you fix iphone se 4 sim not working without losing your valuable data.

 iphone se 4 sim not working

Part 1: Why is My New iPhone 16 Slow? Is iPhone 16 Slower than iPhone 15?

If your iPhone 16e/SE 4 is showing SIM issues, there could be several causes behind the problem. Here are the most common reasons why your SIM card might not be working:

  • SIM Tray Issues: If your SIM tray is bent, dirty, or misaligned, it could prevent the iPhone from properly reading the SIM card. A damaged tray can lead to a "No SIM" error or SIM failure.
  • Outdated iOS Version: An outdated iOS version can create compatibility issues with your SIM card. Software bugs or outdated system files can cause SIM detection problems, resulting in errors like "SIM Not Available."
  • Damaged or Dirty SIM Card: A damaged, scratched, or dirty SIM card can prevent a proper connection with the iPhone 16e/SE 4’s network. Even small scratches or dirt buildup can cause connectivity problems, leading to SIM failure.
  • Network or Carrier Settings Issues: Incorrect or outdated carrier settings can prevent your iPhone from detecting the SIM card properly. Issues like improper APN settings or outdated network configurations can cause SIM card errors.
  • Software Glitches or Hardware Damage: Sometimes, system errors from software bugs or hardware issues can cause SIM problems. For example, an iOS update might corrupt system files, or internal damage may interfere with SIM functionality.
  • Note: In some cases, attempting to fix these issues on your own may lead to further complications or data loss. It’s always recommended to stop using the device immediately and consider using professional recovery tools to increase your chances of success.

Part 2: How to Fix iPhone 16e/SE 4 Sim Not Working?

If your iPhone 16e/SE 4 SIM is not working, don’t worry—there are several effective solutions you can try before seeking professional help. Below, we’ve outlined some simple steps that can resolve the issue quickly and safely without risking your data.

Way 1: Restart Your iPhone 16e/SE 4

Restarting your iPhone 16e/SE 4 is a quick and easy way to fix SIM not working issues. This simple action can clear minor software glitches that may be preventing your iPhone from detecting the SIM card.

Step 1: Press and hold the Side button and Volume up or Volume down button simultaneously until the power off slider appears.

Step 2: Drag the slider to turn off your iPhone and wait for about 10-15 seconds for it to completely shut down.

Step 3: After your iPhone shuts down, press and hold the Side button again until the Apple logo appears to turn your device back on.

If your iPhone becomes unresponsive, you can try a force restart instead.

Step 1: Quickly press and release the Volume Up button.

Step 2: Quickly press and release the Volume Down button.

Step 3: Press and hold the Side button until the Apple logo appears, and your iPhone will restart.

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Way 2: Reinsert the SIM Card

Sometimes, a SIM card not working issue can be fixed by simply reinserting the SIM card. A loose or improperly seated SIM card might be causing connectivity problems. Here's how to fix it:

Step 1: Power off your iPhone 16e/SE 4 completely by following the restart process mentioned earlier.

Step 2: Locate the SIM tray on the right side of your iPhone and use a SIM ejector tool (or a small paperclip) to remove the tray.

Step 3: Gently remove the SIM card from the tray. Inspect the card for any visible damage, dirt, or debris. If it's dirty, clean it carefully with a soft cloth.

Step 4: Reinsert the SIM card back into the tray, making sure it’s placed correctly.

Step 5: Carefully slide the tray back into the device until it clicks into place.

Step 6: Power your iPhone back on and check if the SIM card is detected and working properly.

working properly

Way 3: Update iOS to the Latest Version

An outdated iOS version can cause various issues, including SIM failure. Keeping your iPhone’s software up to date is crucial for fixing bugs and improving device performance. Here’s how to check and update your iOS version:

Step 1: Open the Settings app on your iPhone 16e/SE 4.

Step 2: Scroll down and tap General.

Step 3: Tap Software Update. Your iPhone will check for any available updates.

check for any available

Step 4: If a new update is available, tap Download and Install to start the update process.

Step 5: Follow the on-screen instructions to complete the update. Make sure your device is connected to Wi-Fi and has enough battery (or plug it into a charger).

Step 6: Once the update is complete, restart your iPhone and check if the SIM issue has been resolved.

Way 4: Reset Network Settings

Resetting your network settings can fix issues related to mobile data, Wi-Fi, and SIM functionality. This action restores all network-related settings to their default, potentially resolving any SIM problems caused by incorrect configurations.

 reset network settings

Step 1: Open the Settings app on your iPhone 16e/SE 4.

Step 2: Scroll down and tap General.

Step 3: Tap Reset, then select Reset Network Settings.

select setting

Step 4: Enter your device passcode if prompted.

Step 5: Confirm by tapping Reset Network Settings again.

Step 6: Your iPhone will restart, and all network settings will be restored to their defaults, including Wi-Fi passwords, VPN settings, and cellular settings.

Way 5: Best Tool to Fix iPhone 16e/SE 4 Issues without Losing Data

If previous fixes did not work for you, you need a more reliable solution to fix your iPhone 16e/SE 4 SIM issues without risking data loss. Tenorshare ReiBoot is a powerful tool designed to fix a wide range of iOS problems, including SIM failure. It offers a one-click repair option that restores your iPhone’s system to normal while keeping all your data safe.

  • No Data Loss: ReiBoot repairs your iPhone without erasing your data, so you don’t have to worry about losing important information.
  • iOS System Repair: It fixes over 150 iOS system issues, including network and SIM problems caused by system glitches or outdated software.
  • Easy to Use: No technical skills are required. With just a few clicks, you can fix your SIM failure without using complex tools like iTunes or jailbreak.
  • Safe and Efficient: ReiBoot ensures a smooth repair process, making it the best choice for restoring your iPhone 16e/SE 4 without complications.

By fixing underlying iOS system issues with ReiBoot, you can resolve SIM failures caused by software glitches or network problems. Using ReiBoot ensures your iPhone 16e/SE 4's SIM issues are repaired without data loss.

Here is How to Use Tenorshare ReiBoot to Fix iPhone 16e/SE 4 SIM Failure Issues

  • Download and Install ReiBoot
  • Download and install Tenorshare ReiBoot on your PC or Mac. Launch the software and connect your iPhone 16e/SE 4 using the original USB cable. Once your device is detected, click the "Start Repair" button to begin.

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  • Choose Standard Repair
  • Select Standard Repair to fix the SIM failure issue without losing data. If ReiBoot cannot detect your device, it will automatically guide you into Recovery Mode or DFU mode. Click "Download" to get the firmware package.

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  • Start Repair Process
  • Once the firmware package is downloaded, click "Start Standard Repair" to begin the repair. Wait a few minutes for the repair process to complete. Your iPhone 16e/SE 4 will reboot and the SIM issue should be resolved without data loss.

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Part 3: Frequently Asked Questions

Q1: How do I get my SIM out of SOS mode?

Ans: To get your SIM out of SOS mode, restart your iPhone and ensure you have a proper cellular connection. If that doesn’t work, try reinserting the SIM or update your carrier settings.

Q2: Why is iPhone stuck in SOS only mode?

Ans: Your iPhone may be stuck in SOS mode due to a network issue, a carrier settings problem, or a damaged SIM card. Try restarting your phone or checking for any system updates.

Q3: Why is my SIM card not working emergency calls only?

Ans: If your SIM card only allows emergency calls, it could be due to a damaged SIM, incorrect carrier settings, or a network problem. Ensure the SIM is inserted properly and check for any network issues.

Final Words

If you’re facing SIM failure issues on your iPhone 16e/SE 4, the solutions we've covered should help resolve the problem. Whether it’s restarting your device, reinserting the SIM, or updating iOS, these methods are simple to try. If the issue persists, using Tenorshare ReiBoot can be a great option to fix iOS system problems without losing data. It's user-friendly and efficient in resolving SIM-related issues on your iPhone 16e/SE 4.

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Fix 150+ iOS Issues, No Data Loss