I
4014
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iTunes · Media Sync & Recovery
iTunes restore failed when device disconnected during update sequence.
Quick Answer
Error code 4014 on your iTunes Media Sync & Recovery means: iTunes restore failed when device disconnected during update sequence.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Unstable USB connection
  2. Device restart during flash
  3. Firmware transfer interruption
  4. Host driver issue
How to Fix It
1
Change cable and USB port.
2
Disable power-saving USB features temporarily.
3
Re-enter recovery/DFU mode and retry.
4
Update iTunes/Apple Mobile Device drivers.
5
Test on second computer.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
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