Top 5 Solutions to Fix iPhone Can’t Make or Receive Calls Error After Updating to iOS 26/iOS 18

How Do I Fix My iPhone If It Won't Make or Receive Calls?

Try to make a call and iPhone is totally mute, especially happens after updating to a new iOS version. This is one of the things that I hate most. A number of variables could be at work, if your iPhone won’t make or receive calls. Generally, the reasons can be sorted into 5 categories. Read on to find fixes for each causes.

• 1. iPhone Settings
• 2. Software Update
• 3. SIM Card Error
• 4. Network Problem
• 5. iPhone Operating System Issue

1. iPhone Settings

Checking iPhone settings is the first thing I would do if my iPhone won’t make or receive calls. Certain features like Airplane Mode and No Not Disturb mode silent calls, alerts and notifications when the device is locked. Go through the following guide to see if these settings prevent you from making or receive calls.

1. 1). Go to Settings and turn on Airplane Mode, in about 10 seconds, turn off airplane mode.
2. 2). Go to Settings > Do Not Disturb.
3. 3). Check to see if there’s any blocked numbers by going to Settings > Phone > Call Blocking & Identification.
4. 4). Make sure Call Forwarding is turned on. Go to Settings > Phone > Call Forwarding.

2. Software Update

It’s possible that the outdated carrier version and iOS that accounts for “iPhone won’t make or receive calls” issue. Make sure you have internet or Wi-Fi connection when doing the following update.

1. 1). Update carrier settings: Navigate to Settings-> General-> About-> and then view the information next to Carrier.You’ll see the option to update your carrier settings if yours is not the newest.

1. 2). Update to the latest iOS: Go to Settings-> General -> Software Update-> Download and Install on your iPhone. Or connect your device to your computer and update through iTunes by going to Summary->Check for Update->Download and Update.

3. SIM Card Error

Remove SIM card from your iPhone, reposition it and put it back to iPhone. If repositioning won’t work, try to get a new SIM card from your carrier. You can also look for this guide to fix SIM card not detected after iOS 26/iOS 18 Update

4. Network Problem (including Outrage)

If your iPhone, such as an iPhone 14, is experiencing issues with iPhone not receiving or making calls after an update, first ensure it’s not due to a billing-related block or errors in the carrier system. There could be an outage in your area or a weak cellular signal causing the problem. To verify, check if others in your area are also facing issues with iPhone not receiving or making calls and try making calls from a different location. If the problem persists after these checks, you can proceed with further troubleshooting steps.

Reset network settings: Go to Settings > General > Reset > Reset Network Settings. This will erase your iPhone settings, including Wi-Fi passwords, preferred networks, and VPN settings.
Switch to a different network band: Go to Settings > Cellular > Cellular Data Options > Enable LTE and turn off Enable LTE, 4G, or 3G (this option will depend on your carrier and device model).

5. iPhone Operating System Issue

If you’ve tried all the above solutions, still call failed on iPhone, there’s a great chance that iPhone is suffering from some operating system issues. To dealing with such tricky problems, it’s better to get help from the professional UltFone iOS System Repair. This tool could download firmware (baseband code, and the Boot ROM) and then repair iOS system without causing data loss.

Features:

• Repair more than 150 iOS system issues including you can't make or receive calls on iphone, the reboot loop, iOS 26/iOS 18 not showing up, stuck on Apple logo, and blank screen without losing data.
• Single Click to enter and exit recovery mode on iPhone/iPad/iPod.
• Reset iPhone/iPad/iPod Touch even if you don't have password/iTunes/Finder
• Downgrade from iOS 26/iOS 18 without iTunes.
• Support all iOS versions and iPhone models, including the latest iPhone 15 series and iOS 26/iOS 18.

Video Guide to See How to Fix iPhone Won't Make or Receive Calls

Let's see how to solve iOS 26/iOS 18 can't make or receive calls on iPhone using UltFone iOS System Repair step-by-step.

• Step 1Download and launch UltFone iOS System Repair on your PC or Mac. Then, connect your iPhone/iPad/iPod touch to the computer. Click "Start" to enter the iOS system repair module.

• Step 2On the following screen, click "Standard Repair" to proceed.

• Step 3Before performing the system repair, click the "Download" button to download the firmware package that is automatically matched with your device.

• Step 4Once the firmware package is downloaded successfully, click "Start Standard Repair" to fix the iOS issues on your device.

• Step 5After the iOS system recovery, your device will automatically reboot, and your iOS 26/iOS 18 can make or receive calls normally as before.