My daughter’s MBP 13” - late 2017, running High Sierra or Mojave - won’t boot; the “thermometer” gets stuck at the end.
I have tried resetting the PRAM, safe boot and starting up from an external drive. Same problem, although the boot from external drive gets stuck at about the 3/4 point, not the very end.
The school’s IT people didn’t have any better luck.
I have a Genius Bar appointment, but not till Thursday afternoon so, if there are any other ideas, they would be much appreciated.
“Best” news is that her schoolwork is stored on the computer, not any of the cloud or back up services I, or the school, has made available.