How to fix “The contents of the iPhone could not be read” error: Fixes that actually work

If you get this error while trying to connect your iPhone to your Mac, double-check a few things: make sure you’re running the latest operating system on both devices, you’re using the right cable, the settings are correct, and the apps are running properly.

Here's a quick overview of the solutions; each one targets a different potential cause. Detailed instructions follow below.

Solution	What it fixes	Time needed
Restart Finder	Temporary glitches in Finder	30 seconds
Quit all apps	App conflicts blocking USB connection	1 minute
Use AnyTrans for iOS	Alternative data transfer when Finder fails	2 minutes
Try original cable/different ports	Hardware connection issues	1 minute
Restart both devices	Software cache issues	3 minutes
Update macOS/iOS	Compatibility bugs	5-30 minutes
Reset iPhone settings	Corrupted device configurations	10 minutes

iPhone not showing up in Finder

If your iPhone doesn't appear in the Finder sidebar, start with this quick check before moving on to deeper fixes.

Here's how to make your device visible in Finder:

1. Make sure you're in Finder (you'll see Finder next to the Apple logo).
2. Press Command + Comma or click Finder > Settings.
3. Click the Sidebar tab.
4. Check the box for CDs, DVDs, and iOS Devices.

Your iPhone should now appear in the sidebar when connected. If it still doesn't show up, let's explore what's causing the problem.

Why can't my Mac read my iPhone's contents?

Most connection glitches come down to one of these:

• Out-of-date macOS or iOS
• Damaged, non-MFi, or loose Lightning/USB-C cable
• You didn't tap Trust on the iPhone after plugging in
• USB port or hub isn't supplying steady power
• Security or background apps are blocking the USB link
• Corrupted sync files on the iPhone (iTunesDB/iTunesCDB)
• MDM (Mobile Device Management) or content-restriction profiles that hide the device

Update macOS and iOS first, then test another Apple cable and port. If Finder still can't see your phone, move on to the fixes below.

Fixing “The contents of the iPhone could not be read” error in Finder

Fix 1. Restart Finder

Relaunching Finder clears temporary glitches that can block device recognition. Here's how:

1. Make sure you're in Finder.
2. Press Command + Option + Esc and click Relaunch.

This simple restart often resolves the connection issue immediately.

Fix 2. Quit all apps on your Mac

Some apps can interfere with Finder and prevent connected devices from appearing. Since it's hard to pinpoint the culprit, quit all apps at once.

To quit an app on your Mac:

1. Right-click its name in the Dock and choose Quit.
2. Or press Command + Q while in the app.

To make this step faster, I use QuitAll, an app that closes every open app in one click, including background processes. I just open QuitAll from the menu bar, select all apps, and let it do the work. It's a clean way to rule out app conflicts as the cause of your Finder issue.

Fix 3. Try an alternative way of managing your iPhone's content

Sometimes a third-party app handles data transfers better than Apple's built-in tools. AnyTrans for iOS is a solid alternative for transferring data when Finder isn't cooperating.

I use it to transfer music, photos, videos, contacts, and messages between devices — all in one place. It's especially useful when I need to back up specific data types before resetting my iPhone. Plus, it can extract data from old iTunes or iCloud backups if you need to recover something specific.

Fix 4. Use the original USB cable and try different ports

Connect your iPhone with the original Apple USB cable. Try a different USB port on your computer. Unplug and replug your iPhone two or three times.

According to Apple Support documentation, non-MFi certified cables often cause connection failures. Stick with Apple's cable or MFi-certified alternatives.

If you're unsure which cable works with your iPhone model, see this guide on how to connect iPhone to MacBook — it covers cable types for Lightning and USB-C models.

Fix 5. Restart your iPhone and Mac

I've found that restarting both devices fixes about half of all connection issues. It clears temporary cache files that can interfere with USB communication.

• To restart your iPhone: Press and hold the volume + side button until the power slider appears. Drag the slider and wait 30 seconds. Then press and hold the side button until you see the Apple logo.
• To restart your Mac: Open the Apple menu, then click Restart.

Give both devices a minute to fully boot before reconnecting.

Fix 6. Update your iPhone and Mac

Make sure you're running the latest versions. 

To update your iPhone:

1. Open Settings.
2. Tap General > Software Update.
3. Tap Download and Install if available.

To update your Mac:

1. Click the Apple menu.
2. Click System Settings.
3. Choose General from the sidebar.
4. Click Software Update.

Install any available updates and restart both devices.

Fix 7. Reset all iPhone settings

First, I recommend backing up your iPhone before resetting. This guide to backing up iPhone to Mac walks through Finder, iCloud, and AnyTrans for iOS options.

To reset iPhone settings:

1. Open Settings > General.
2. Tap Transfer or Reset iPhone.
3. Choose Reset > Reset All Settings.

This won't delete your data, but it will reset Wi-Fi passwords and other preferences.

Fixing “The contents of the iPhone could not be read” error in iTunes

Still on an older version of macOS with iTunes? If you're seeing the same error, try these steps:

• Restart both devices. Follow the same steps described above. This basic step resolves many iTunes sync issues.
• Reinstall iTunes. Drag iTunes to the Trash and download a fresh copy from Apple's website. Remember that iTunes only works on macOS Mojave or earlier.
• Remove songs from the iTunes library playlist. Corrupted media files can trigger the error. Remove recently added songs from your library and try syncing again.
• Rename your iTunes database file. This forces iTunes to rebuild its database: Go to your Music folder > find "iTunes Library.itl" and rename it to "iTunes Library.old" > open iTunes and try syncing again.

This often fixes database corruption issues that prevent iPhone recognition.

“Can't see iPhone in Finder” resolved

Most of the time, this error comes down to something simple — a loose cable, an outdated OS, or an app quietly blocking the connection. Work through the fixes above in order, and you'll have your iPhone showing up in Finder again in minutes.

If you want to speed things up, QuitAll kills all conflicting apps in one click, and AnyTrans for iOS gives you a reliable way to back up or transfer data even when Finder refuses to cooperate. Both are part of Setapp — a subscription that gives you access to 270+ Mac and iOS apps for one flat monthly fee. Try it free for 7 days, no commitment needed.

FAQ

Why can't my Mac read my iPhone's contents?

Several things can trigger this error — even when your iPhone is unlocked, the cable is connected, and you've tapped Trust This Computer. Common culprits include outdated macOS, faulty cables, and software conflicts. The fixes above address each potential cause systematically.

Will clicking Restore erase everything on my iPhone?

Yes. Restore wipes the device, installs a fresh copy of iOS, and deletes your data. Back up first with Finder, iCloud, or AnyTrans for iOS. Only choose Restore when other fixes fail, or you already have a recent backup.

How can I back up my iPhone if Finder or iTunes won't open it?

You still have options. Try AnyTrans for iOS to copy photos, contacts, and other files directly over USB. You can also start an iCloud Backup over Wi-Fi: Settings > Apple Account > iCloud > iCloud Backup > Back Up Now. Once you're safe, return to the troubleshooting steps.

What does Trust This Computer do, and what if the prompt doesn't appear?

When you tap Trust, the iPhone lets macOS view files and create backups. If the alert never shows up, unlock your phone, unplug and reconnect the cable, or restart both devices. Still no luck? Use a different Apple cable or reset your phone's Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy to trigger the prompt again.