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mmehrle Author

Level 1

47 points

Unable to launch Apple Diagnostics

I encountered a (recoverable) kernel panic on my MBP this morning when waking my system after upgrading to Mojave from ElCapitan just a few days earlier. In order to figure out if there may be hardware issues I attempted a restart while holding the D key in order to launch Apple Diagnostics. I however was greeted by this error message:

Error: 0x8000000000000003, Cannot Load 'EFI/Drivers/TestSupport.efi'

Status: 0x00000003

I am able to restart and launch OS X - thus the system is operational. But obviously something strange is going on.

Question: IF I create a bootable drive will I be able to launch diagnostics or AHT from there?

Thanks in advance.

MacBook Pro 15", macOS 10.14

Posted on Apr 6, 2019 2:13 AM

222 replies

BDAqua

Level 10

239,495 points

Oct 3, 2019 10:38 AM in response to Zukken

Thanks for the post.

BDAqua

Level 10

239,495 points

Oct 16, 2019 5:26 PM in response to newto83

You won't catch me doing anymore updates. :)

BDAqua

Level 10

239,495 points

Oct 27, 2019 11:04 AM in response to hrob

Thanks for the report. :)

Nov 6, 2019 5:12 PM in response to mmehrle

can anyone report on if a Catalina upgrade fixes this issue?

BDAqua

Level 10

239,495 points

Nov 7, 2019 2:13 AM in response to Yumie96

Sorry to hear that, if you'd like help with trying to straighten out this one start a new topic here.

BDAqua

Level 10

239,495 points

Nov 7, 2019 9:11 PM in response to Runway4221028725

Oh, I quite agree... I just hope they straighten out most of the problem before 10.16 is thrust upon us.

Nov 8, 2019 9:22 AM in response to Yumie96

Oh please don't buy a new iMac because of this. It only rewards Apple for screwing up your perfectly good 2012 iMac.

Yumie96

Level 1

12 points

Nov 15, 2019 8:33 PM in response to gregwhitephoto

I actually already planned on getting a new imac few months ago, wanted to get it on dec as a christmas present for myself, now it gives me for reason to get it this month