my iphone 5s could not be restored. an unknown error occurred (50), i tried evrything but the issue is same, can anyone help

my iphone 5s could not be restored, I was actually trying to update it from ios 9.0.2 to ios 9.1 recently when this happened it shows as an unknown error occurred (50) while restoring on firmware I tried several times on different computers still same issue, can anyone please help me to resolve this issue. Thanks

iPhone 5s, iOS 9.1

Posted on Nov 2, 2015 11:03 PM

Reply
4 replies

Nov 2, 2015 11:05 PM in response to tafeels

Try using different cables.

Resolve iOS update and restore errors in iTunes - Apple Support


Try using the DFU mode:

  • Connect your device to your computer using a USB cable.
  • Turn off the device.
  • Press and hold the Power button for 3 seconds
  • Press the Home button while holding the Power button and hold both for 10 seconds.
  • Release the Power button, but KEEP HOLDING the Home button.
  • After about 15 seconds, iTunes will tell you it has detected a device in Recovery Mode.
  • Restore your device

More info here: https://www.theiphonewiki.com/wiki/DFU_Mode

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my iphone 5s could not be restored. an unknown error occurred (50), i tried evrything but the issue is same, can anyone help

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