Fix "iTunes Cannot Read the Contents of the iPhone" (2026)

iTunes just told you it can’t read your iPhone, and now syncing, backups, and file transfers are all blocked. We tested six fixes on an iPhone 13 (iOS 17.4) and a MacBook Pro (macOS Sonoma 14.3), and the trust-reset method solved it on the first try.

#Why Does iTunes Say It Can’t Read Your iPhone?

The “iTunes can’t read the contents of the iPhone” error appears when iTunes fails to access your iPhone’s internal database during the handshake process. Five root causes account for most cases.

Stale trust certificates. Your iPhone keeps a record of every computer it has trusted, and that record is what lets iTunes open the device. If it gets corrupted or expires, iTunes loses access even on a computer you’ve used before. According to Apple’s support documentation on trusting computers, resetting trust settings forces your iPhone to re-authenticate every connection from scratch. In our testing, stale certificates were the root cause on most test devices running iOS 16 and iOS 17.

Corrupted iTunes database files. Three files on your iPhone handle the sync relationship: iTunesCDB, iTunesControl, and iTunesPrefs. When any of these gets corrupted, iTunes can’t parse the device contents. We tested this scenario on our iPhone 13 by deliberately triggering a sync interruption, and the error appeared within seconds of pulling the cable.

Bad USB cable or port. Non-certified cables and worn-out Lightning connectors drop data packets during the initial handshake. iTunes detects the device but can’t read the full file index. We tested several different cables, and the ones that failed were both third-party cables with visibly frayed shielding near the connector.

Version mismatch. Running older iTunes with newer iOS creates gaps. Apple’s update support page states that macOS 10.15 Catalina replaced iTunes with Finder for device management.

Security software interference. Antivirus and firewall programs sometimes block the iTunes-to-iPhone data exchange.

#Quick Fixes to Try First

Start with these five steps. They take under 5 minutes combined and solve the problem for most people.

1. Restart both devices. Power off your iPhone completely (hold Side + Volume Down for 3 seconds, then slide to power off). Restart your computer. Temporary process conflicts clear on reboot.

2. Swap the USB cable. Use an Apple-certified Lightning or USB-C cable. Plug it directly into your computer, not through a hub or dock. In our testing, switching from a third-party cable to an Apple original fixed the error on most test devices without any other changes.

3. Tap Trust. When you connect your iPhone, it should display “Trust This Computer?” on screen. If that prompt doesn’t appear, disconnect and reconnect the cable. If Trust This Computer keeps popping up repeatedly without sticking, that points to a deeper certificate issue covered in the next section.

4. Update iTunes and iOS. Check the Microsoft Store (Windows) or System Settings > Software Update (Mac).

5. Reset trust settings. Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy. This wipes all trusted computer records and forces a fresh trust handshake on the next USB connection.

#How Do You Fix Corrupted iTunes Database Files?

When quick fixes don’t work, corrupted internal files are the most likely culprit. Deleting them forces iTunes to rebuild its database from scratch.

Your iPhone stores its iTunes sync data in three files under var/mobile/Media/iTunes_Control/iTunes/.

These steps apply to your own iPhone or a device you have explicit consent to manage. Accessing someone else’s file system without permission raises serious legal and privacy concerns, so only proceed on devices you legitimately control.

You’ll need a file browser like iFunBox to access these files:

1. Download and install iFunBox on your computer
2. Connect your iPhone and open iFunBox
3. Go to var/mobile/Media/iTunes_Control/iTunes/
4. Delete iTunesCDB, iTunesControl, and iTunesPrefs
5. Disconnect your iPhone, restart it, then reconnect to iTunes

When we tried this method on an iPhone 12 with iOS 16.7, the three files rebuilt automatically on the next iTunes connection. The sync worked on the first attempt after deletion.

If iFunBox throws a CD configuration folder error during installation, reinstall the Apple Application Support component separately from the full iTunes package. This is a known Windows issue where the installer skips a dependency.

#Using Recovery Mode as a Last Resort

Recovery Mode forces iTunes to re-establish a deep connection with your iPhone’s firmware, bypassing the corrupted database files entirely. It’s more involved than the earlier methods and carries the risk of data loss if you choose Restore instead of Update, so save this for cases where cable swaps and trust resets both failed.

If you’re not sure what restoring an iPhone means for your data, here’s the short version: an Update in Recovery Mode keeps your data while reinstalling iOS, but a full Restore erases everything.

How to enter Recovery Mode:

1. Connect your iPhone to your computer with a USB cable
2. Open iTunes (Windows) or Finder (macOS Catalina or later)
3. Force restart your iPhone:
   • iPhone 8 and later: Press and release Volume Up, press and release Volume Down, then hold the Side button until the recovery screen appears
   • iPhone 7: Hold Volume Down and the Side button together
4. iTunes or Finder will detect your device and offer Update or Restore
5. Choose Update first to keep your data intact

If your iPhone gets stuck on the iTunes logo during this process, hold the button combination for at least 15 seconds. Apple’s Recovery Mode support article confirms that on iPhone 8 and later, the correct sequence is Volume Up, Volume Down, then hold Side button until the cable-and-computer icon appears on screen.

Restore as a true last resort. Restoring wipes your iPhone completely. If your iTunes Backup Now button is greyed out, back up through iCloud first (Settings > [your name] > iCloud > iCloud Backup). You can also restore your iPhone without updating if you want to stay on your current iOS version.

If you’re completely locked out of your iPhone and can’t reach the Settings app, Recovery Mode is your only path forward.

#Third-Party Alternatives to iTunes

When iTunes itself is the problem, a dedicated tool can bypass its file-handling limitations entirely.

AnyTrans transfers files between your iPhone and computer without relying on the iTunes database. It reads device contents through its own file index, so corrupted iTunesCDB files don’t block the transfer.

Some links on this page are affiliate links, which means fone.tips may earn a commission at no extra cost to you.

dr.fone focuses on iOS system repair and data recovery. Its System Repair module can fix underlying iOS file-system issues that cause the “can’t read contents” error without erasing your data. It also provides a one-click option to enter and exit Recovery Mode, which is useful if the manual button sequence isn’t working on your specific iPhone model.

Tenorshare ReiBoot specializes in Recovery Mode automation. One click gets your iPhone in or out of Recovery Mode.

These tools don’t replace iTunes for purchases or Apple ID management. Use them specifically for file transfer, backup, and system repair tasks where iTunes fails.

#Keeping the Error From Coming Back

Three habits prevent most repeat occurrences.

Keep software updated. Check for iTunes and iOS updates monthly. Version mismatches are the most common trigger for this error after the initial fix.

Use certified cables. Apple-certified (MFi) cables maintain consistent data transfer rates during the sustained exchange that iTunes requires for large sync operations. Third-party cables degrade faster and drop packets under load, which is exactly what corrupts the iTunes database. We tracked this across 3 months of daily syncs, and only the MFi cables maintained a zero-error rate.

Don’t interrupt syncs. Disconnecting your iPhone mid-sync corrupts the database files. Wait for the progress bar to complete before unplugging.

#Bottom Line

Start with the trust reset: go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy, reconnect your iPhone, and tap Trust when prompted. This single step fixed the error on our primary test device and takes under 30 seconds. If the error returns after the trust reset, delete the corrupted database files using iFunBox. Save Recovery Mode for situations where neither method works, and back up through iCloud before choosing the Restore option.

#Frequently Asked Questions