iPad Sync Error: Internal Device Error Fix

If you see “The iPad cannot be synced. An internal device error occurred” when connecting your iPad to a computer, the fix usually involves restarting both devices, updating software, or resetting the sync history in iTunes/Finder. This error is common on Windows and older macOS setups, and it typically means the sync process was interrupted or a cached sync record is corrupted.

What Causes This Error

The “internal device error” message appears when iTunes or Finder cannot complete a sync because of a communication failure between the iPad and the computer. Common triggers include:

A faulty or non-Apple USB cable or port
Outdated iTunes, macOS, or iPadOS software
Corrupted sync history files on the computer
Security software blocking the connection
Another program (like an older sync tool) interfering

Apple’s support documents describe this error as a generic sync failure, not a specific hardware fault. It can happen on any iPad model and any computer that runs iTunes or Finder.

Basic Fixes to Try First

Start with the simplest steps, as they resolve many cases:

Restart the iPad – Press and hold the power button until “slide to power off” appears, then turn it back on.
Restart the computer – A fresh boot clears temporary glitches in the sync service.
Use a different USB port – Prefer a port directly on the computer, not a hub.
Try another cable – Only use an Apple-certified cable; third-party cables can cause intermittent errors.
Unlock the iPad – If the device is locked, the computer cannot read it. Tap “Trust This Computer” if prompted.

If the error persists, move to the software-level fixes below.

Update Software and Sync Settings

Outdated software is a leading cause. On a Mac with macOS Catalina or later, sync happens in Finder. On Windows or older macOS, use iTunes. Check for updates:

iPadOS: Go to Settings > General > Software Update on the iPad.
macOS: System Settings > General > Software Update.
Windows iTunes: Help > Check for Updates (or use the Microsoft Store version).

After updating, reset the sync history. This clears the corrupted record that often triggers the error. In iTunes on Windows, go to Edit > Preferences > Devices and click “Reset Sync History.” In Finder on Mac, there is no direct button; instead, you can delete the sync history file manually (see next section).

Reset Sync History Files

iTunes stores sync records in a plist file. Deleting it forces a fresh sync. This is safe and does not erase your iPad data.

Close iTunes or Finder completely.
On Windows, open File Explorer and go to %APPDATA%\Apple Computer\iTunes and delete the file iTunesPrefs.xml (or the entire iTunes folder if you want to reset all preferences).
On Mac, go to ~/Library/Preferences/ and delete com.apple.iTunes.plist.
Reopen iTunes or Finder and connect the iPad again.

This removes the sync history that may be corrupted. You will need to re-authorize the computer if you had previously authorized it.

Check for Driver or Security Conflicts

On Windows, the Apple Mobile Device USB driver can become outdated or conflict with other drivers. To update it:

Open Device Manager (right-click Start > Device Manager).
Expand “Universal Serial Bus controllers” and look for “Apple Mobile Device USB Driver.”
Right-click it and choose “Update driver” > “Search automatically.”

If you don’t see that driver, unplug the iPad and plug it back in; Windows should reinstall it. Also, temporarily disable any antivirus or firewall software to test if it’s blocking the sync. If the error disappears, add iTunes or Finder to the allowed list.

When to Use Recovery Mode

If the error persists and you cannot sync at all, you may need to put the iPad into recovery mode and restore it. This erases the iPad, so only do this if you have a backup or are willing to lose data. Steps:

Connect the iPad to the computer.
Force restart the iPad while connected: on iPads with Face ID, press and release Volume Up, then Volume Down, then hold the Power button until the recovery mode screen appears.
In Finder or iTunes, you will see a prompt to “Restore” or “Update.” Choose “Update” first to keep your data.

If Update fails, you may need to Restore, which wipes the device. After restoring, set up as new or restore from a backup.

Frequently Asked Questions

Will resetting sync history delete my iPad data?

No. Resetting sync history only clears the record of what was previously synced. Your photos, music, and apps remain on the iPad. You may need to re-sync everything, but nothing is deleted.

Does this error occur on Mac and Windows equally?

It is more common on Windows because of driver and USB issues, but it can happen on Mac too, especially after a macOS update. The fixes are similar, but Windows users have the extra step of updating the Apple Mobile Device driver.

Can I fix this without a computer?

No, the error specifically occurs during a computer sync. If you only use iCloud, you won’t see this error. You can avoid the computer entirely by using iCloud for backups and file transfer.

Why does the error appear after a Windows update?

Windows updates can change USB driver settings or break compatibility with the Apple Mobile Device driver. Reinstalling the driver or updating iTunes usually resolves it.

Is there a way to sync wirelessly to avoid this?

Yes, you can enable Wi-Fi syncing in iTunes/Finder (select the iPad > Summary > “Sync with this iPad over Wi-Fi”). This avoids USB issues, but you still need to connect via cable once to enable it.

What if the error only happens with one specific iPad?

That suggests a problem with that iPad’s sync history or its software. Try resetting sync history on the computer, then on the iPad go to Settings > General > Transfer or Reset iPad > Reset > Reset All Settings (this does not erase data, but resets preferences).

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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