How to Fix iPhone Not Syncing with iTunes [12 Fixes]

Experiencing an iPhone that refuses to sync with iTunes can stop you from backing up, transfer music, or manage your device. This guide will help you identify, fix, and prevent sync failures - whether you use a Windows PC or a Mac with Finder. And these tricks are also work for fixing the iPod won't sync with the iTunes problem.

Part 1: Why Won't My iPhone Sync with iTunes? (Common Causes)

Based on Apple Support data and user discussions across Microsoft Q&A and Reddit, the most common causes include:

Part 2: Before You Start: Quick Pre-Sync Checklist

Before diving into advanced fixes, complete these 30-second checks:

• Update your iPhone - Go to Settings > General > Software Update (iOS 26.3 or later recommended)

• Update iTunes on Windows - From Microsoft Store (Library > Update) or Apple's website

• Restart both devices - A full restart clears temporary glitches

• Use an Apple-certified USB cable - Charging-only cables won't work

• Unlock your iPhone - Keep it on the Home screen before plugging in

• Tap "Trust This Computer" - If it doesn't appear, reset Location & Privacy: Settings > General > Transfer or Reset > Reset > Reset Location & Privacy

Part 3: 12 Fixes for iPhone Not Syncing with iTunes

Fix 1: Update iTunes to the Latest Version

An outdated iTunes version is the most overlooked cause of sync failures. Older versions may not recognize newer iOS versions or may crash during large transfers.

How to update iTunes on Windows (Microsoft Store version):

1. Open the Microsoft Store app on your PC

2. Select the Library tab

3. Find iTunes in the list and click Update

How to update iTunes on Windows (Apple direct download):

1. Launch iTunes

2. Click Help > Check for Updates

3. Follow the prompts to install the latest version

Target iTunes version: v12.12.9 or later is recommended for compatibility with iOS 26 and newer.

See also:

Fixes for iPhone Cannot Be Used Because It Requires a Newer Version of iTunes

The Backup Can't Be Restore Because Software Is Too Old - How to Fix

Fix 2. Restart Your iPhone and Computer

Another tip to resolve the iPhone won't sync to computer problem is to restart your iPhone and computer. This can refresh your devices and fix some small technical glitches.

To restart your iPhone:

• Go to Settings > General > Shut Down

• Wait 30 seconds, then press and hold the side button until the Apple logo appears

• For older iPhones with a Home button: Press and hold the top button until "slide to power off" appears

To restart your PC:

• Click Start > Power icon > Restart

After both devices restart, reconnect your iPhone and open iTunes.

Fix 3. Check Your USB Cable and Port

A damaged or non-certified USB cable is one of the most common physical causes. The iPhone may charge but still not be recognized for data transfer, causing the iPhone won't sync with iTunes issue.

What to check:

• Use the original Apple cable or an MFi-certified (Made for iPhone) cable - Cheap cables often don't support data transfer

• Try a different USB port - Preferably a port directly on your computer's motherboard (rear ports for desktops)

• Avoid USB hubs - Connect directly to the computer rather than through a hub, monitor, or docking station

• Clean the charging port - Inspect for lint or debris; clean gently with a dry, non-metal tool（e.g., wooden toothpick）

Pro tip: If the iPhone briefly appears then disappears in iTunes, that often indicates an unstable connection—replace the USB cable.

Fix 4: Trust This Computer on Your iPhone

When you connect your iPhone to a computer for the first time (or after a factory reset), iOS requires you to explicitly trust this computer. Without this trust, iTunes cannot access the device.

To fix:

1. Unlock your iPhone

2. Connect it to your PC using a USB cable

3. Look for the "Trust This Computer?" pop-up on your iPhone

4. Tap Trust and enter your passcode

If the pop-up doesn't appear:

• Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy

• Reconnect the iPhone—the trust prompt should now appear

Fix 5: Re-authorize Your Computer in iTunes

If the sync button is greyed out or you can't sync purchased content, your computer may not be authorized.

How to re-authorize:

1. Open iTunes with your iPhone connected

2. Click Account > Authorizations > Authorize This Computer

3. Sign in with your Apple ID password

4. Click Authorize and wait for confirmation

iTunes authorization gives you the ability to copy and sync the purchased apps, music, and media files to your iOS devices. Re-authorize iTunes should help to fix iPhone not syncing effectively.

Fix 6: Restart Apple Mobile Device Service

On Windows, a background service called Apple Mobile Device Service is responsible for detecting iPhones. If it's stopped or not running, iTunes won't see your device.

How to restart it:

1. Press Win + R, type services.msc, and press Enter

2. Scroll down to find Apple Mobile Device Service

3. Right-click it and select Restart

4. If the service is stopped, right-click and select Start

5. Reconnect your iPhone and open iTunes

If the service fails to start, set its Startup type to Automatic, click Apply, then Start.

Fix 7: Update or Reinstall Apple Mobile Device USB Driver

If your PC recognizes the iPhone in File Explorer but not in iTunes, the USB driver is likely corrupted.

How to manually update the driver:

1. Disconnect your iPhone

2. Right-click the Start button and open Device Manager

3. Expand Portable Devices or Universal Serial Bus controllers

4. Look for Apple iPhone, iPad, or an entry with a yellow exclamation mark

5. Right-click it and select Update driver

6. Choose Search automatically for drivers

7. If that fails, select Browse my computer > Let me pick > Apple Mobile Device USB Driver

8. Reconnect your iPhone

If the driver is missing entirely:

• Uninstall iTunes, then reinstall the latest 64-bit version directly from Apple's website (not the Microsoft Store)

• Apple's direct installer includes the driver package, while the Microsoft Store version may cause compatibility issues

After this, open iTunes to see if the iPhone sync problem is resolved.

Fix 8: Disable Third-Party Security Software Temporarily

Third-party antivirus or firewall software (Norton, McAfee, Avast, etc.) can block Apple services and prevent iTunes from detecting your iPhone.

What to do:

• Temporarily disable your antivirus/firewall

• Keep only Windows Defender active

• Try syncing again

Common error codes related to security software: 4, 6, 1630-1641, 3000-3999, 9000-9999

If disabling the software resolves the issue, add iTunes and Apple Mobile Device Service to your security software's whitelist.

See Also:

Full Guide: How to Fix iTunes Error 54?

Full Guide on How to Fix iTunes Error 4005 or iPhone Error 4005

Fix 9: Reset iTunes Sync History

Corrupted sync history can prevent iTunes from syncing correctly.

How to reset:

1. In iTunes, go to Edit > Preferences > Devices

2. Click Reset Sync History

3. Click OK and restart iTunes

Fix 10. Sync iPhone via Wi-Fi

If iPhone won't sync with computer using a USB cable, it is also recommended to try syncing it over Wi-Fi. Make sure that both your computer and iPhone are connected to the same Wi-Fi network.

Here's are the steps: Go the Summary on iTunes > Under Options, click Sync with this iPhone over Wi-Fi > Hit Apply.

After this, switch to your iPhone and head to Settings > General > iTunes Wi-Fi Sync > Tap Sync now.

Fix 11. Disable iCloud Music Library / Sync Library

If iCloud Music Library (called Sync Library in newer iOS versions) is enabled on your iPhone, manual syncing via iTunes will not work because Apple Music expects to sync music over the cloud instead of via USB.

How to disable it:

1. On your iPhone, go to Settings > Apps > Music

2. Turn off Sync Library (or iCloud Music Library on older iOS versions)

3. Reconnect your iPhone to iTunes, Music sync should now work normally.

4. Now on your iTunes, check the box of Sync Music > select Entire music library > Apply.

For a detailed troubleshooting guide on this specific issue, refer to Apple's official support page.

Learn more: How to Transfer Music from iPhone to Computer Effectively

Fix 12. Reset your iPhone

The last resort you can try is to reset your iPhone. This will eraser all the settings and data on your iPhone. Before you start, you should back up your iPhone first.

To reset iPhone:

1. Open the Settings app on your iPhone.
2. Tap General > Reset.
3. Tap Erase All Connect and Settings.
4. Enter your passcode to confirm.
5. Tap Erase iPhone.

Tipss: iPhone won't sync with iTunes on Mac? It is possible that your iPhone is failed to be recognized by Mac. You can refer the article How to Fix iPhone Won't Connect to Mac to solve this issue.

Part 4: Use an iTunes Alternative to Sync iPhone/iPad/iPod

If your iPhone still won't sync with iTunes after trying all the solutions above, don't be distressing, you can use an iTunes alternative - Coolmuster iOS Assistant to sync iPhone to iTunes. This professional iOS data managing program aims to give you a hassle-free and stable data transfer experience. With its help, you can back up your files from iPhone to iTunes backup location smoothly and quickly.

Key features of Coolmuster iOS Assistant:

• One-click back up and restore iOS data to/from computer or iTunes without launching iTunes.
• Create multiple iTunes backup without overwriting the previous one.
• Import/delete/restore iTunes backup.
• Selectively transfer files from between iPhone/iPad/iPod and computer.
• Support multiple data types, including contacts, photos, videos, message, notes, calendars, bookmarks, music, book.

Coolmuster iOS Assistant is fully compatible with iOS devices running iOS 5 to iOS 26, such as iPhone 17/16/15/14/13/12/12 Pro/12 Pro Max/12 mini/11, etc. So you don't have to worry about compatibility issues.

How to sync iPhone with Coolmuster iOS Assistant:

1. Connect iPhone to PC

After downloading Coolmuster iOS Assistant on your PC, open it and then connect your iPhone to computer using a USB cord. Tap "Trust" on your iPhone to get it connected with the program successfully.

2. Sync iPhone to iTunes/PC in one click

Click the Super Toolkit section from the top interface and click iTunes Backup & Restore > Hit the Backup option. Here, you can choose the location to store the backup, either to the default iTunes backup location or any folder on your computer. After selecting, click OK to begin to back up iOS data.

3. Selectively transfer iOS data to PC for backup

If you want to back up specific file from iPhone to computer, just simply click the data type from the left menu of the program. You can view the files store on your iPhone easily from your computer, tick the files you want to back up and then click the Export button to save them on PC.

Video Tutorial:

Please watch the video guide about iPhone backup and restore with Coolmuster iOS Assistant.

Part 5: Frequently Asked Questions (FAQ)

Q1: Why is my iTunes sync button greyed out?

Your computer may not be authorized. Go to Account > Authorizations > Authorize This Computer. Also ensure iCloud Music Library / Sync Library is turned off on your iPhone (Settings > Apps > Music).

Q2: My iPhone charges but doesn't show up in iTunes—what's wrong?

This is almost always a connection or driver issue. Start by:

• Using a different Apple-certified USB cable

• Trying a different USB port (directly on the computer, not through a hub)

• Restarting Apple Mobile Device Service (Windows) or relaunching Finder (Mac)

Q3: How do I get the "Trust This Computer" pop-up to show again?

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy. Reconnect your iPhone, and the pop-up should reappear.

Q4: Why does iTunes say my iPhone cannot be synced because it's synced with another iTunes library?

An iPhone can only be synced with one iTunes library (or Apple Music/TV library) at a time. If you see the "Erase and Sync" message, syncing with the new computer will replace the existing content.

Q5: My iPhone shows up in iTunes but won't sync music. How do I fix this?

Most likely iCloud Music Library / Sync Library is enabled. Go to Settings > Apps > Music on your iPhone, turn off Sync Library, reconnect to iTunes, and enable manual music sync.

Q6: Can I use iCloud to sync instead of iTunes?

Yes. iCloud can sync photos, contacts, calendars, messages, and other data across devices without a USB cable. However, for local backups and manual music management via USB, iTunes (Windows) or Finder (Mac) is still required.

Q7: iTunes keeps crashing during sync. What should I do?

Try:

1. Updating iTunes to the latest version

2. Resetting sync history (Edit > Preferences > Devices > Reset Sync History)

3. Reducing the amount of data synced at once (sync smaller batches of music or photos)

4. Using an iTunes alternative like Coolmuster iOS Assistant for large transfers

Q8: Do I need to keep iTunes on my Mac with macOS Catalina or later?

No. iTunes was discontinued on macOS starting with Catalina (10.15). Use the Finder to manage and sync your iPhone.

Q9: My iPhone won't sync over Wi-Fi. How do I fix it?

Make sure:

• Both devices are on the same Wi-Fi network

• "Sync with this iPhone over Wi-Fi" is enabled (in iTunes on Windows, or Finder on Mac)

• Your iPhone is connected to a power source (Wi-Fi sync only works when charging)

• No firewall or VPN is blocking the connection

Q10: I've tried everything. What's the last resort?

Back up your iPhone via iCloud or an iTunes alternative, then Reset Location & Privacy on your iPhone, uninstall and reinstall iTunes (Apple direct version, not Microsoft Store), and if all else fails, contact Apple Support.

Final Words

In this article, we have listed 12 tips for the iPhone sync problems with iTunes. Do the above solutions work for you? Have you got your iTunes syncing back to normal? Welcome to share with us in the comment below.

And if you get tired of using iTunes, you can download Coolmuster iOS Assistant to back up or restore iOS data. It also enables you to selectively transfer files from iPhone/iPod/iPad for a backup. It is your ideal iTunes alternative to manage and sync data.

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