I have a 2016 retina MacBook that was working fine last night, closed the lid and went to sleep. Woke up today to it not booting up. Flashes folder with question mark icon. I reset the pram it didn’t help. Went into recovery mode and the disk doesn’t show up in startup disks, or disks utility. Tried to reinstall OS and again disk doesn’t show up. Ran the diagnostics said everything was fine. So I went to the Apple store and the genius ran the same tests was also confused. Finally ran the Apple diagnostic and it showed a missing hard drive. Anyone ever hear of this happening? This really stinks because I can’t simply replace the drive I need to change the entire logic board which is very costly. Is there anything else I can try to get this to show up?