How to run Apple Diagnostic on a Mac from Mid 2013 and newer

In this video I show you how to run Apple Diagnostic on a Mac from Mid 2013 and newer. This is a test you should run if there's an issue with your Mac or if you're buying a used Mac. If you have an early 2013 or older Mac, you would use the older Apple Hardware Test instead, which I have a video of that here:

Thank you all for watching and feel free to share your thoughts down in the comment section below :)

[mikhaelone]

what if the D or option D does nothing for me?

[Hellopo]

Hello it was stuck in the globe logo then i put my wifi password nothing happened

[alyssiaharvell]

I’ve tried and I can’t run the diagnostic.