Apple iPhone Error Code 90: How to Fix It

Easy 10-15 minutes Medium Severity Verified June 2026
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Error Code
90
Brand
Apple iPhone
Product Type
mobile
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-15 minutes
Error code 90 appears on your Apple iPhone when iTunes encounters a problem syncing your Apple Music library. This usually happens due to a corrupt file or a temporary glitch in the sync process. The fix involves deleting the problematic file or resetting the sync data.
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Tools You'll Need

How to Fix Error Code 90

  1. Back up your iPhone

    Always back up before modifying system files.

  2. Delete the problematic file from iTunes

  3. Reset the sync history

    This will remove all playlists from your device and re-download them.

  4. Disable and re-enable iCloud Music Library

  5. Restart both devices

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When to Call a Professional

If the error persists after all steps, contact Apple Support. There may be a deeper issue with your Apple ID or iTunes account that requires backend investigation.

Frequently Asked Questions

What does Apple iPhone error 90 mean?
Error 90 indicates a problem syncing Apple Music to your iPhone via iTunes, often due to a corrupt file or sync cache.
How do I fix error code 90 on iPhone?
Try deleting the recently added song from iTunes, resetting sync history, or toggling iCloud Music Library off/on.
Will I lose my music if I reset sync history?
No, your music is stored in iCloud. You will need to re-download playlists, but your library remains intact.
Does error 90 affect my iPhone's data?
No, it only affects music sync. Your contacts, photos, and other data are safe.
Is error 90 common on iPhone?
It's less common than other errors, but it can occur occasionally when syncing large music libraries.

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