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Unknown Error (78)

After updating software, iTunes gave us an error message: 'unknown error (78)'.

It also says that the software cannot be updated; it can only be restored to factory setting.

We do NOT have the photos and contacts backed up. We would like to recover/download photos and contacts BEFORE restoring to original factory setting. Any suggestion is appreciated. Thank you for your help.

iPhone 6

Posted on Sep 9, 2019 12:45 PM

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Posted on Oct 22, 2019 8:55 AM

i have this problem too with iPhone 6 plus wont quit dfu mode with iTunes error 78


3 replies

Unknown Error (78)

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