How to Fix iPhone Can’t Make Calls After Update iOS 18

iOS 18 is finally out. This new system has many new features that not only bring convenience but also make the iPhone more interesting. However, annoying problems may also appear after the update. 

Some users report that they can’t make calls but can receive, and others say that iPhone won’t make or receive calls after update. Whatever the case, it's very annoying. You will not be able to get in touch with others in a timely manner and may miss important phone calls.

Why iPhone can’t make calls after update?

The main function of the phone is to make phone calls, but some software problems or wrong settings can make your iPhone call failed repeatedly.

● There is no signal. You will not be able to make phone calls if the iPhone is unable to connect to a cellular network.
● Carrier settings are not updated to the latest version. The network services may not support making or receiving calls on the new system.
● Incorrect settings. After the update, some settings may have changed. These settings may cause network or other problems and make iPhone won’t make or receive calls after update.

How to fix ios 18 calls not working

Before going to Apple Store, you can try to fix the iPhone won’t make or receive calls after update issue yourself. Try these methods one after another until the problem is solved. Don’t forget to make a phone call after attempting each solution.

Fix 1. Check the signal

First of all, please make sure your iPhone is getting network coverage. You will not able to make phone calls if you see “No Service" or "Searching" in the status bar. You can go to an area where your iPhone can catch network signals so that you can make phone calls.

Fix 2. Turn Airplane mode on and off

If you're sure you're in a network coverage area but there's no signal, then you can force your iPhone to search for a network signal by turning Airplane Mode on and off.

• Swipe up from the bottom or swipe down from the top of the screen to access Control Center.
• Tap the Airplane Mode button to turn it on > Wait a few seconds, then turn it off.

Fix 3. Update carrier settings

Outdated carrier settings may cause the iPhone can’t make calls after update problem. The current network service may not be compatible with the latest iOS 18. You can go to check if there is an available update that can help you improve cellular network connectivity and performance.

• Make sure your iPhone is connected to Wi-Fi or cellular network.
• Go to Settings app > Choose General > Tap About.
• Wait a few seconds, if you see a pop-up message that tells you that new settings are available, just tap Update to make it.

Fix 4. Force restart iPhone

iPhone can’t make calls after update iOS 18 issue may be caused by system glitches. You can force restart your iPhone to refresh the memory and eliminate any errors causing the problem.

Press the volume+ button and then quickly release > Press the volume- button and then quickly release > Press the side button for seconds until you see the logo of Apple.

Fix 5. Reset network settings

You may find iPhone won’t make or receive calls after update when there is a problem with the network. Resetting network settings can help you clear all the wrong settings. The settings will go back to the default state. But please note that it will delete all Wi-Fi passcodes and Bluetooth-paired devices.

Go to Settings > General > Transfer or Reset iPhone > Reset and tap Reset Network Settings > Enter your passcode to confirm.

Fix 6. Reset all settings

You can also try to reset all settings to troubleshoot any incorrect settings that may lead to iPhone can’t make calls after update iOS 18 issue.

Go to Settings > General > Transfer or Reset iPhone > Reset and tap Reset All Settings > Enter your passcode to confirm.

Fix 7. Contact your carrier

If none of the above methods can help you solve the iPhone can’t make calls after update problem, then it’s time to contact your carrier. You can go to this website - https://getsupport.apple.com/solutions/contact-carrier to find your carrier and follow the steps to complete your request.

Or you can use another phone to call the carrier. Tell the carrier your phone number and iPhone information and they can help check if there is a problem with your account and tell you the solution.

Now you can know how to fix call failed on iPhone. Updating your iOS system can often cause sudden unknown errors or sudden data loss, to avoid this situation, just keep on reading to learn how to back up iPhone data to PC efficiently.

Learn how to back up your iPhone to ensure data security

To ensure data security, you’d better make a backup of important data before each update. If you do not want to use iTunes or iCloud, then here comes AOMEI FoneBackup, a professional iOS data backup tool to help you easily back up iPhone data.

💡 You can easily back up all iPhone data including settings and all apps with the Full Backup feature in one click.

💡 Or selectively back up photos, videos, music, contacts and messages on iPhone as you like with the Selective Backup feature.

💡 For people who only need to back up WhatsApp data, you can go to WhatsApp Manager and choose WhatsApp Backup to make it.

In addition, you can use the Phone Transfer feature to transfer files from iPhone to PC as a backup.

Final words

That’s all about how to fix iPhone can’t make calls after update iOS 18. This problem usually occurs when there is a problem with network, you can try the 7 methods mentioned in this article to troubleshoot the problem. If nothing works, you can go to Apple Store and let a technician check your iPhone.