"No bootable device…” after unplanned empty battery shutdown

by Microsmsm   Last Updated December 06, 2018 15:12 PM

The macbook pro has suddenly shutdown (battery went out) while I am doing bootcamp to windows besides macOS.

Now there's a big black and white message No bootable device...

I can't do anything, I don't know how to change to macOS I tried:

  1. holding shift
  2. and tried alt+shift but no hope, also tried d for
  3. d diagnose but still no hope.

What can I do please to fix the problem?

Thanks in advance

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