AHT doesnt start

[srkn]

I've created bootable usb and tried to run it but 15 seconds after it asks for my password my mac starts normally. I tried to copy the .diagnostics however my mac still trying to start it over internet recovery, when it tries to download over internet an errors occures and says cannot load efi drivers test support.efi. My device info is MacBookAir5,2 - Mac-2E6FAB96566FE58C - Mid 2012 mba

[srkn]

There is a bug in AHT and AD, check this out; https://discussions.apple.com/thread/250285425

[kupietools]

Ok. That is 7 pages of comments and you give no indication what within it you're referring to.

I'm having the exact same issues as you, it's still trying to use internet recovery after I correctly copied the .diagnostics folder to /System/Library/CoreServices. Is there a workaround or solution for this?

[srkn]

Ok. That is 7 pages of comments and you give no indication what within it you're referring to.

I'm having the exact same issues as you, it's still trying to use internet recovery after I correctly copied the .diagnostics folder to /System/Library/CoreServices. Is there a workaround or solution for this?

No need to check 7 page to understand what is going on, this is a bug and for now there is no solution, however if you visit the last page you can see a draft message that I wrote about contacting Apple support.

[marcesengel]

@srkn any results yet? I'm getting an error for about half a second, afterwards booting normal...

[srkn]

@DragonRaider5 Nope not yet, please contact with the Apple support regarding this issue, check this https://discussions.apple.com/thread/250285425?answerId=250768478022#250768478022

[dpastern]

MacBook pro mid 2012 here - just bought it off EBay, so obviously was hoping to run AHT on it. Made the mistake of upgrading to Mojave from 10.8.5 the other night...Anyway, the AHT version is:

MacBookPro9,2 Mac-6F01561E16C75D06

it's doing this too...

edit: boot rom firmware version 226.0.0.0

this is exactly why UEFI was such a bad idea...there was nothing, I repeat, nothing wrong with the old style bioses that have served computers for many years...

I have an Apple genius appointment on this coming Sunday afternoon, will show them this page and the apple discussions thread and quote the case number and see what they are doing (nothing I guess). I mean, why would Apple:

a) fix its own fuckup and admit to screwing up (Apple doesn't make screwups lolz)

b) fix something like this when they want to break things so that you give up and buy a new shitty MacBook Pro with glued HDD and RAM...

sorry for the language, but Apple has went downhill VERY badly since Steve Jobs died.

[vz28bh]

Same issue here, tried to boot off USB and my iMac (iMac13,1) showed the missing EFI error and then gave up and booted off the hard drive. I will be replacing my hard drive next week and plan to install a completely fresh Mojave and see if that makes any difference.

[ashishtibrewal]

Same issue with mine too. Tried all possible solutions but nothing seems to work! 😕🤔

[Jonn3y]

So there is absolutly no way to get the AHT working atm? I still get the EFI issue, doesn't matter if booted from the stick using [ALT] or just from the internal SSD

[srkn]

@vz28bh and @dpastern any updates?

[andlabs]

A proper fix to this would be nice as well. MacBookPro9,1 Mac-4B7AC7E43945597E. The machine used to run Catalina from its previous owner but I'm running Sierra on it. I think my SMC chip is broken — I have all the same symptoms of this thread after doing a battery replacement and random early abrupt power-offs on battery power both before and after — but without AHT I can't know for sure (unless EtreCheckPro can say? I'll try that now I guess...). If it is an issue with the firmware I'd be happy to try downgrading it, if that even is possible. I have even tried blessing and setBooting the copied over folder in /System/Library/CoreServices/.diagnostics to no avail.

If they would fix their Internet Recovery image that would also be nice, but whatever.

EDIT nope, EtreCheck did not actually bother checking the hardware, or if it did it's hiding that behind an IAP, which I will not honor because it's an IAP. If you want me to pay for your software, charge for it up front.