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Level 1

6 points

OS High Sierra wouldn't install because of an error verifying firmware

OS High Sierra wouldn't install because of an error verifying firmware.

Mac Pro, iOS 11.1

Posted on Nov 12, 2017 8:34 AM

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1 reply

Level 10

148,865 points

Nov 12, 2017 9:39 AM in response to cosmey

See if any of the following articles can help:

Get your Mac ready for High Sierra - Apple Support
How to Clean Install MacOS High Sierra - OSXDaily
Troubleshooting macOS High Sierra Problems - OSXDaily

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OS High Sierra wouldn't install because of an error verifying firmware

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