Apple iPhone Error Code 1605: How to Fix It

Easy 15-30 minutes Medium Severity Verified June 2026
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Error Code
1605
Brand
Apple iPhone
Product Type
mobile
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
iTunes Error 1605 occurs when your iPhone fails to enter DFU (Device Firmware Update) mode properly during an iOS update or restore. This usually points to a temporary software glitch, USB connection issue, or interference from security software.
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Tools You'll Need

How to Fix Error Code 1605

  1. Restart Your Computer and iPhone

  2. Update iTunes to the Latest Version

  3. Temporarily Disable Security Software

    Remember to re-enable your security software after completing the iOS update to protect your system.

  4. Use a Different USB Port and Cable

  5. Put iPhone into DFU Mode Manually

    Ensure you follow the timing precisely. If the Apple logo appears, you held too long and need to start over.

  6. Restore iPhone Using Recovery Mode (Alternative)

    Restoring will erase all data. Back up your iPhone first if possible.

Parts You May Need

Apple Lightning to USB Cable
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Apple Lightning to USB Cable
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Apple Lightning to USB Cable
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Apple Lightning to USB Cable
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When to Call a Professional

If error 1605 persists after trying all steps, it may indicate a hardware issue with the iPhone's internal components (e.g., NAND flash or battery). Contact Apple Support or visit an Apple Store for diagnostics.

Frequently Asked Questions

What does iTunes error 1605 mean?
Error 1605 means your iPhone failed to enter DFU mode properly during an iOS update or restore, often due to software conflicts or connection issues.
Does error 1605 delete my data?
Performing a restore will erase your data, but updating usually preserves it. Always back up your iPhone before troubleshooting.
How do I put my iPhone into DFU mode?
Connect to computer, press Power for 3 sec, then add Volume Down for 10 sec, release Power but keep Volume Down for 5 sec. Screen stays black.
Can a faulty USB cable cause error 1605?
Yes. A damaged or non-Apple-certified cable can disrupt communication. Try a different Apple-certified cable.
Do I need professional help for error 1605?
If basic steps fail, contact Apple Support. Persistent error may indicate a hardware issue requiring professional repair.

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