Apple Hardware Test (AHT) is GONE!! after Lion install

Does anyone know if AHT from the package posted in a reply (Scroll down to the message of Jasric89, Jun 8, 2012 1:20 AM) still works with Mt. Lion or Mavericks? (Cross posting a similar note to the Mt. Lion forum since this one seems not so active.)

It worked for me. I upgraded from 10.6.8 to 10.9 and lost AHT in the process. I had no install DVD's left and unable to download it with alt+D. However after installing jasric89's pkg, AHT would finally launch by holding in D during boot. Everything worked well afterwards.

I installed the pkg file on my mid 2009 MBP with OSX Mavericks and it seemed to work. But now on restarting and pressing D I get a black screen and the computer just shuts down. I ran disk permissions utility as well afterwards after one failed AHT trial, but that not change anything.

I was able to use the downloaded AHT package on Lion, but the upgrade to Mavericks killed it. Now the only thing that works are my original Snow Leopard install disks (specifically Disk 2, which contains the correct AHT for my mid-2010 MBP). Once that disk is in, pushind D without any modifier keys boots up the original AHT and it functions perfectly.

I called Apple and was told my system is "obsolete" and they no longer support machines which originally shipped with 10.4. Their advice was to reinstall the OS, which only removed the .diagnostics folder from CoreServices once more.

My only hope is one of the true Apple geniuses on this forum can think of a solution. I've gotten very sage advice here before.

If you're in NY bring it in to Tekserve. They will probably still work on it. Although there may be a charge for the diagnosis. If you are seeing .diagnostics in its proper location with invisible files folders toggled on, and it still doesn't work, then I doubt anyone here will be able to offer a solution. If the drive has never been replaced, it's quite likely that. They don't last forever.

To toggle invisibility on, copy into Terminal

defaults write com.apple.finder AppleShowAllFiles -bool true ; killall Finder

Then hit return/enter and navigate to that location in CoreServices.

To reverse, change the true to false

Oops! I forgot to mention that I manually upgraded the RAM to 2GB and internal HD to a 1TB Western Digital Caviar Black.

I always suspected my new HD wasn't up to snuff because it makes an audible crunching sound whereas the native 250GB was almost completely silent. WD offered me the option to exchange the drive (and its still under warranty), but I paid $100 to have the drive installed by an authorized Apple service center and they wanted to be paid again to replace the drive.

Could either the RAM or new HD be causing the issue?

Sure, but can't be certain without running the AHT or getting a diagnosis from a shop which will run the Apple Service Diagnostic for your model.

If you could boot and get in, you can try running the free demo to see what it says about the drive. Also, get in to Console in Utilities>System Log and see if it's showing I/O errors.

http://www.volitans-software.com/smart_utility.php

And if you can open Disk Utiltiy and see if it says

SMART Status Verified or not. Although it can be failing and still show verified. SMART from with DU is not very reliable.

I have a 2012 15" MBP with retina. After reinstalling Mt. Lion, I fail to use diagnostics locally. But after I downloaded and copied the "diagnostics" file back in coreservice, I still cannot use it locally. So anyone could let the AHT load locally instead of connecting with internet recovery should be appreciated.

I have a 2012 15" MBP with retina. After reinstalling Mt. Lion, I fail to use diagnostics locally. But after I downloaded and copied the "diagnostics" file back in coreservice, I still cannot use it locally. So anyone could let the AHT load locally instead of connecting with internet recovery should be appreciated.

thanks so much! i have looked everywhere for a download since mine is no longer on my machine and i couldn't find my discs. it did take a while to install but worked perfectly and helped me to eliminate hardware issues as part of my problem.

Only problem with that is the AHT from GitHub doesn't necessarily work. I suppose they may not all be like this, but got one from there for late '09 Mini to put on a flash drive, but, no matter what I did it wouldn't show up as a startup disk. Of course, no harm in trying.

I've tried this for a dozen times. This doesn't work with my Mid-2012 MBP with Retina... Still I can use the "Internet Recovery". Seems like we need something to switch the system from initiating Internet one to using the local files. Maybe one more file or string to modify? Or file permissions?

File a bug reportwith Apple for lost functionality. Requiring the Internet for any installation or running an app is a dumb idea.

I have the same issue with my Late 2008 MBP running on Lion. Holding the "D" button doesn't load the Apple Hardware Test, even when I inserted my installation DVD on my superdrive.