iPhone Call Failed? Try These Fixes FIRST

There’s nothing more irritating when you’re trying to make an urgent phone call only to find yourself dealing with an iPhone call failed error.

Fortunately, there are ways to solve this problem and they’re typically not too hard to do, providing you know what to look for.

We’ll go through all the possible reasons why your iPhone call failed and how to fix the problem. 

Why Does My iPhone Keeps Saying Call Failed?

We can’t pin down a single reason why your iPhone keeps saying call failed. Low signal quality, broken SIM card, some annoying software bugs, and SIM card tray damage may cause this problem.

Whatever the cause might be, the fixes below will help you start making phone calls again. Keep in mind these fixes can also be helpful if your iPhone says no SIM card installed.

1. Restart Your iPhone

Restarting your iPhone may solve many minor problems. To restart your iPhone, follow the steps below:

For iPhones with Face ID

  1. Press and hold the Volume Up or Volume Down button and the Side/Power button simultaneously.
  2. Release both buttons when slide to power off appears on the screen.
  3. Swipe the power icon from left to right to shut down your iPhone.
  4. Wait a few seconds, then press and hold the side button to turn your iPhone back on.
  5. Release the side button when the Apple logo appears.

For iPhone without Face ID

  1. Press and hold the Power button until the slide to power off appears.
  2. Swipe the power icon from left to right across the screen to shut down your iPhone.
  3. Wait a few seconds, then press and hold the Power button again to turn your iPhone on again.
  4. You can release the power button when the Apple logo appears on the screen.

Using iOS 

1. Navigate to Settings

Open settings app
Go to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Then, tap on General.

General Menu in Settings
Tap on General. Screenshot: Farhad Pashaei/Gotechtor

3. Finally, choose Shut Down

Shut Down
Select Shut Down. Screenshot: Farhad Pashaei/Gotechtor

2. Turn Airplane Mode On and Off

To reset iPhone’s cellular connection, you have to turn Airplane Mode on and off again. It may fix the problem when iPhone calls fail. Follow the steps below:

1. Head to Settings.

Open settings app
Go to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Next, toggle Airplane Mode to turn it on and then tap on it to turn it off. 

Activating airplane mode
Tap on Airplane Mode. Screenshot: Farhad Pashaei/Gotechtor

Alternatively, you can:

1. Swipe down the top right corner (in iPhones with Face ID) or swipe up the bottom of the home page (in iPhones without Face ID) to open the Control Center

2. Tap on the Airplane Mode button to turn it on or off.

Enable Airplane Mode
Tap on Airplane Mode. Screenshot: Farhad Pashaei/Gotechtor

3. Remove and Reinsert SIM Card

Most iPhones have the SIM Card tray on the right side of the body. Remove the tray with the ejector tool provided in the iPhone box or a thin pin or needle.

Gently clean and rub the SIM Card and reinsert it carefully into the SIM card slot. 

4. Reset Network Settings

If you think something is wrong with the network that caused your iPhone calls to fail, reset your iPhone’s network settings.

You can solve many network-related issues by resetting your iPhone’s settings. Network settings reset will not erase your data, but it will remove all saved connections, paired Bluetooth devices, and VPN setups.

Follow the steps below to reset network settings. 

1. First, go to Settings.

Open settings app
Head to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. After that, select General

General Menu in Settings
Select General. Screenshot: Farhad Pashaei/Gotechtor

3. Scroll down and hit Transfer or Reset iPhone. 

Transfer and Reset iPhone in General menu
Choose Transfer or Reset iPhone. Screenshot: Farhad Pashaei/Gotechtor

4. Tap on Reset.

Reset in Transfer or Reset iPhone
Select Reset. Screenshot: Farhad Pashaei/Gotechtor

5. Choose Reset Network Settings

Reset Network Settings in iphone
Reset Network Settings. Screenshot: Farhad Pashaei/Gotechtor

6. Enter your passcode to begin the process. 

5. Reset All Settings

If resetting your network settings didn’t solve your call failure or “No SIM Card Installed” error, you can reset all settings on your iPhone.

It will change all settings on your device and brings the default settings. Note that it won’t change or erase any of your data. To reset all settings, check the following steps:

1. Navigate to Settings.

Open settings app
Go to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Now, tap on General

General Menu in Settings
Navigate to General. Screenshot: Farhad Pashaei/Gotechtor

3. Scroll down and tap on Transfer or Reset iPhone. 

Transfer and Reset iPhone in General menu
Select Transfer or Reset iPhone. Screenshot: Farhad Pashaei/Gotechtor

4. Tap on Reset.

Reset in Transfer or Reset iPhone
Go to Settings. Screenshot: Farhad Pashaei/Gotechtor

5. Then, choose Reset All Settings. 

Reset All settings
Select Reset All Settings. Screenshot: Farhad Pashaei/Gotechtor

6. Enter your passcode to begin the process. 

6. Update iPhone iOS

iPhone keeps saying call failed? What is the version of your iOS? Sometimes these types of issues are caused by outdated iOS versions.

You have to update your iOS immediately after Apple releases a new version. Software updates will fix bugs and improve the functions of the device. To update iOS:

1. Go to Settings

Open settings app
Head to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Navigate to General.

General Menu in Settings
Select General. Screenshot: Farhad Pashaei/Gotechtor

3. Next, choose Software Update.

Software update in General menu
Go to Software Update. Screenshot: Farhad Pashaei/Gotechtor

4. Finally, if you see any updates available, tap on Download and Install. 

If you find any issues updating your phone, check our guide on how to fix unable to check for update on iPhone.

7. Force Close All Apps

Sometimes your iPhone failed to call because of conflicts with other apps open in the background. You can solve minor software problems by force closing and reopening the apps.

If you have several apps open, close them all to solve the problem.

For iPhones with Face ID

1. Swipe up the middle bottom of the Home Screen to open the app switcher.

App switcher
App Switcher. Screenshot: Farhad Pashaei/Gotechtor

2. Swipe up on each app to close them.

8. Check Carrier Settings Update

Updates for wireless carriers’ settings can enhance the connection between iPhones and their network. It’s a good idea to update the carrier settings.

When a carrier settings update is available, you’ll usually get a pop-up on your iPhone. If you get that notification, tap on the Update button.

To manually check for carrier’s settings update:

1. Go to Settings.

Open settings app
Go to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Then, tap on General.

General Menu in Settings
Go to General. Screenshot: Farhad Pashaei/Gotechtor

3. Choose About.

About menu in General
Select About. Screenshot: Farhad Pashaei/Gotechtor

4. If a carrier settings update is available, a pop-up will appear within 15 seconds.

9. Dial *#31#

Dialing *#31# is a nearly foolproof and straightforward solution to fix the problem of call failure on your iPhone.

Dial *#31#. Screenshot: Farhad Pashaei/Gotechtor

10. Turn Call Forwarding Off

The Call Forwarding feature on iPhone may cause interference, and your phone calls may fail. You can turn it off to see if this is the problem or not. To turn off Call Forwarding:

1. Head to the Settings menu.

Open settings app
Navigate to Settings. Screenshot: Farhad Pashaei/Gotechtor

2. Choose Phone.

Phone in settings
Scroll down to Phone. Screenshot: Farhad Pashaei/Gotechtor

3. After that, tap on Call Forwarding.

Call Forwarding
Select Call Forwarding. Screenshot: Farhad Pashaei/Gotechtor

4. Finally, make sure it is off. 

11. Contact Your Carrier

If none of the above solutions worked, you must contact your mobile carrier. There could be something wrong with your SIM Card related to the mobile carrier.

Pending bills, unpaid charges, and antenna issues in your neighborhood may cause the suspension of the service, and as a result, your phone calls fail. 

Conclusion

As you can see there’re a wide number of reasons why your iPhone calls are failing.

Software bugs, broken SIM Card tray, outdated iOS, crashed apps, suspension in the mobile carrier’s services, and iOS features such as Call Forwarding are the main reasons your iPhone call fails.

Hopefully, we have tackled the issue of your iPhone calls failing and have helped you to fix it.

If none of the solutions worked for you, we suggest you contact your mobile carrier or make a Genius reservation to get help from the pros.

For the past 7 years, Farhad has been tinkering with phones, laptops, power banks, etc. When he's not writing, he's devouring info about new products launch.

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