HT201442: If you see Error 3194, Error 17, or 'This device isn't eligible for the requested build' in iTunes

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Q: Trying to restore my iphone 4 and I keep getting unknown error 21 and then it stops?

Trying to restore my iphone 4 and I keep getting unknown error 21 and then the restore stops.

iPhone 4

Posted on Mar 9, 2014 7:15 PM

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Q: Trying to restore my iphone 4 and I keep getting unknown error 21 and then it stops?

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