Level 1

4 points

Trying to erase the hard disk. I am getting "operation failed" couldn't open device: (-69877)

Trying to erase the hard disk. I am getting "operation failed" couldn't open device: (-69877). Thoughts?

iMac Line (2012 and Later)

Posted on Apr 18, 2021 4:27 PM

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Hello, I am trying to erase my disk and have this error Couldn’t open device. : (-69877) I am trying to erase my disk and have this error Couldn’t open device. : (-69877)
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Level 3

664 points

Apr 18, 2021 6:11 PM in response to EdQuar

Check the related Article above your discussion. This might help.

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Trying to erase the hard disk. I am getting "operation failed" couldn't open device: (-69877)

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