HT201257: Using Apple Hardware Test
Learn about Using Apple Hardware TestQ: Holding down "D" no longer starts Apple Hardware Test! Any idea what's happened and how I fix it? Or do I need to go t ... Holding down "D" no longer starts Apple Hardware Test! Any idea what's happened and how I fix it? Or do I need to go to the Genius Bar? MacBook Pro with Lion Preinstalled. more
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Helpful answers
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Feb 28, 2012 1:23 AM in response to ABMorleyby ds store,Yes, make sure you have a Internet connection first, then reboot holding the D key and wait for it to be downloaded, takes forever.
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Feb 28, 2012 11:43 PM in response to ds storeby ABMorley,Thanks. However, even with an internet connection that doesn't work for me - the machine just (after an extended delay) boots normally. It doesn't download.
Option-D works for an Internet-based AHT. However that only works with an internet connection. It doesn't seem to download it and install it - it needs internet every time.
Any idea how my local copy of AHT disappeared? I haven't repartitioned the drive or knowingly deleted anything. And how do I reinstate it (because if you need AHT your hardware problems may preclude internet access!)?