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snapHappy77 Author

Level 2

311 points

A Required Download Is Missing

I'm certain I've bricked my MacBook, but maybe someone can help!

I've just bought a new MBP and was going to sell the old one, a 2015 13 inch model. I was trying to erase my details for selling, and I believe I've deleted something I shouldn't have, while in disc utility

When trying to install a new OS I keep receiving an "A required download is missing" message, so can't go any further.

I've tried to repair the disc but I'm not getting any errors, and have also tried to get it going again using Time machine from another Mac, but gets around 90% of the way during the black screen with the white line then stops.

I've also tried to go via safe mode, on the off chance that offered something, but it wouldn't start that way.

I can't see there is anything I can do to solve this, as there are no other options available. But someone may surprise me.

MacBook

Posted on Oct 31, 2019 2:56 PM

Top-ranking reply

U Don't Want To Know

Level 1

4 points

Posted on Jan 3, 2020 2:41 PM

Talked to an Apple specialist today and thought I'd post his answer in case anyone still has this issue. He had me restart my MacBook Pro and hold Command+Option+R until a spinning globe appears after the restart. He said this era of laptops' certificates for Mac OS X reinstalls have expired, so the option listed above drives the computer to search for essentially an updated reinstall certificate online. Hope this helps!

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A Required Download Is Missing

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