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iTunes error

What is iTunes Error 17? How to Fix iTunes an unknown error occurred (17) when Upgrade or Restore

iTunes error 17 fix on Mac or PC

Today, many users reported iTunes error 17 downgrade problems when they are trying to upgrade to iOS 11 from iOS 1o using iTunes on Mac or Windows 10. Instead of OTA (Over-The-Air) update cause of Wi-Fi lag or might due to the slow Wi-Fi connection. Don’t worry. The iPhone could not be restored an unknown error occurred