According to this article, holding down the "D" key while my MacBookPro11,3 boots should bring up "Apple Diagnostics". However, "Apple Hardware Test" comes up instead. When I try to run in, it fails, saying my hardware is not supported.
How do I replace the "Apple Hardware Test" firmware program with the "Apple Diagnostics" firmware program?
Some more background: This is a new macbook pro, and I copied the hard drive from my old one using disk utility. After the transfer, the laptop worked fine, but would not boot into recovery mode– holding down option at startup and selecting the recovery drive yielded a grey screen with a white, cross-out circle in the middle. Re-downloading and re-installing Mavericks fixed this problem. I can now boot into recovery mode, but I still have the problem described above.
Please do not answer this question if you don't understand the difference between "Apple Hardware Test" and "Apple Diagnostics." Linking me to Apple support and pointing out that "Apple Diagnostics" replaced "Apple Hardware Test" in mid-2013 (as the 2 current answers have done) does not answer my question.
Best Answer
The original AHT file is somewhat hidden.
The AHT is stuffed into an AHTxx.dmg file and found on the Recovery HD volume that is also hidden.
First you have to make the hidden partitions visible
To enable the see all partitions in Disk Utility (the Debug Menu)
In Disk utility now there will be a tab called Debug.
Use it to show hidden partition.
You will now see the Hidden partition called Recovery and EFI.
Mount the Recovery to see the files in finder and find the AHTxx.dmg
Delete it since it does not work anyway and it is a left over.
Now you can Disable the see all partitions in Disk utility (remove the Debug from the Tabs)
To Show all hidden files
When done replace the TRUE with FALSE to hide hidden files.
Try the Diagnostic mode.
Since you do not have one anymore, the Internet version should come up automagicaly.