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A2116 / 2019 / 3.6 GHz quad-core i3, 3.0 GHz 6-core i5, or 3.2 GHz 6-core i7 processor. Released March 19, 2019.

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iMac 2019 will not boot,?folder, changed to SSD and changed RAM.

I have a 2019 iMac retina, it will not boot. I have done all the usual things. New SSD, new RAM, swapped the Fusion Drive then just removed it. Will not load to the diagnostic screen. Does act like it will load recovery but then stops… tried another SSD that I preloaded from my working MacBook but it still will not boot. I guess it’s the logic board?

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Okay, seems like a pretty common problem. Try this:

  • Hold Option (Alt) + Command + R while starting up. This will start the Mac using Internet Recovery.
  • Hold Option + D while starting up. This will start Apple Diagnostics using the internet (versus using offline mode).
  • Create a OS installer USB thumb drive using another Mac. Create a bootable installer for macOS

Hope this helps

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