How to Fix When iPhone Is Not Detected by iTunes on Windows and Mac

Introduction

When iTunes fails to detect a connected iPhone, it disrupts key functions: data synchronization, backups, iOS updates, or file transfers. The issue arises from various causes—ranging from simple (a faulty cable) to complex (outdated drivers). This guide provides step-by-step solutions for Windows and macOS (up to Catalina) to help restore the connection without needing a service center. After completing these steps, you'll be able to manage your device via iTunes again.

Requirements

Before you begin, ensure you have:

• An iPhone with iOS 12 or newer (for iOS 13+, we recommend using Finder on macOS Catalina and later, but this guide focuses on iTunes).
• A computer with Windows 10/11 or macOS Mojave or earlier, with iTunes 12.8 or newer installed.
• An original or MFi-certified USB cable (Lightning or USB-C, depending on your iPhone model).
• Administrator rights on Windows to install drivers.
• A stable internet connection for updates.

Step-by-Step Instructions

Step 1: Check the USB Cable and Port

A faulty cable or port is the most common cause. iTunes won't receive a signal from your iPhone if the cable is damaged or doesn't support data transfer (e.g., third-party charging cables without MFi certification).

• Use an original Apple cable or a cable with the MFi logo.
• Avoid USB hubs: connect the cable directly to a port on your computer.
• Try a different USB port (preferably USB 2.0 or 3.0 on the back of a desktop PC).
• Test the cable on another device (e.g., an iPad)—if it's also not recognized, replace the cable.

⚠️ Important: Some cheap cables charge the iPhone but don't transfer data. Ensure your cable is designed for syncing.

Step 2: Unlock Your iPhone and Confirm Trust

When first connecting an iPhone to a new computer, the system requests trust. If you tapped "Don't Trust" or dismissed the prompt, iTunes won't see the device.

• Unlock your iPhone (enter your passcode or use Face ID/Touch ID).
• Connect the cable to both the iPhone and computer.
• A pop-up should appear on the iPhone: "Trust This Computer?". Tap Trust.
• If the pop-up doesn't appear:
  • Reconnect the cable.
  • Check if "Charging Mode" is enabled on your iPhone (in Settings > Battery > Charging Mode—disable if active).
  • If the issue persists, reset trust settings: go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy. After resetting, reconnect the iPhone and confirm trust again.

Step 3: Update iTunes to the Latest Version

Outdated iTunes may not support newer iPhone models or iOS versions.

On Windows:

1. Launch iTunes.
2. From the menu, select Help > Check for Updates.
3. If an update is available, follow the installation instructions.
4. Restart your computer after updating.

On macOS (Mojave and earlier):

1. Launch iTunes.
2. From the menu, select iTunes > Check for Updates.
3. Install the update if available.
4. Restart your Mac.

💡 Tip: If iTunes won't launch or freezes, uninstall and reinstall it from Apple's official website. On Windows, use the Apple Software Removal Tool for a complete cleanup.

Step 4: Restart Your iPhone and Computer

Temporary glitches in system services can hinder detection. Restarting clears caches and refreshes drivers.

• On iPhone: Press and hold the power button and one volume button until the power slider appears. Slide to power off, then turn the device back on by holding the power button.
• On your computer: Fully power it off and on again (not just hibernation mode).
• After restarting, wait 30 seconds for all services to load, then connect the iPhone.

Step 5: Install Apple Mobile Device Drivers (Windows Only)

On Windows, Apple Mobile Device Support drivers handle communication between the iPhone and iTunes. If they're corrupted or missing, the device won't be recognized.

1. Disconnect the iPhone from the computer.
2. Open Device Manager (Win + R → type devmgmt.msc → Enter).
3. Look under Portable Devices or Other Devices. If you see "Apple iPhone" or "Unknown Device" with a yellow exclamation mark, the drivers aren't installed.
4. Right-click the device → Update driver → Search automatically for updated driver software.
5. If Windows doesn't find drivers:
   • Download the latest iTunes version from Apple's website (the installer includes drivers).
   • Run the installer and choose "Repair" or reinstall iTunes.
6. After installing drivers, restart the computer and connect the iPhone.

⚠️ Important: Ensure the Apple Mobile Device Service is running: open "Services" (Win + R → services.msc), locate the service, set its startup type to "Automatic," and start it.

Step 6: Reset Trust Settings on iPhone

If previous steps didn't help, the trust database on the iPhone might be corrupted. Resetting Location & Privacy settings removes all saved computers and requires re-confirmation.

1. On the iPhone, go to Settings > General > Transfer or Reset iPhone > Reset.
2. Select Reset Location & Privacy.
3. Enter your passcode if prompted and confirm the reset.
4. After the iPhone restarts, connect it to the computer.
5. When the trust prompt appears, tap Trust.
6. In iTunes, you may need to enter the iPhone passcode to access it (if one is set).

Verifying Success

To confirm your iPhone is detected:

1. Launch iTunes on your computer.
2. Connect the iPhone via USB cable.
3. The iPhone icon with the device name should appear in the left sidebar of iTunes (or at the top of the window on macOS).
4. Click the icon—the device page will open, showing model, capacity, and sync settings.
5. Try performing a backup: click Back Up Now and ensure the process starts without errors.

If the iPhone still doesn't appear, repeat steps 1–6, paying extra attention to the cable and drivers (for Windows). For macOS Catalina or later, use Finder instead of iTunes—connect the iPhone, open Finder, and select the device in the sidebar. If Finder also doesn't see the iPhone, perform steps 1, 2, 4, and 6 (which apply to all macOS versions).

Common Issues

Error "Could not connect to iPhone" or "Failed to establish connection"

• Cause: Driver conflict on Windows or cable issue.
• Solution: Reinstall Apple Mobile Device drivers (Step 5) and try a different USB port or cable.

iPhone is detected but doesn't sync

• Cause: Insufficient free space on iPhone or in iTunes, or iOS version conflict.
• Solution: Free up space on the iPhone (delete unnecessary apps or media). Update both iOS and iTunes to the latest versions. In iTunes, check sync settings—you may need to select specific content types to sync.

On macOS Catalina or later, iTunes doesn't see iPhone but Finder does

• Cause: Starting with macOS Catalina, Apple replaced iTunes with separate apps: Finder for device management, Apple Music for music, etc.
• Solution: Use Finder for syncing. Connect the iPhone, open Finder, and select the device in the sidebar. If Finder also doesn't see the iPhone, perform steps 1, 2, 4, and 6 (common to all macOS versions).

iTunes freezes or won't launch after connecting iPhone

• Cause: Corrupted iTunes installation or conflict with other software.
• Solution: Completely uninstall iTunes using the Apple Software Removal Tool (Windows) or manually (Mac), then reinstall the latest version from Apple's website. Ensure no antivirus software is blocking iTunes (temporarily disable to check).

iTunes stopped seeing iPhone after an iOS update

• Cause: A new iOS version may require an iTunes update.
• Solution: Update iTunes to the latest version (Step 3). If the problem persists, reset trust settings on the iPhone (Step 6) and restart both devices.