High Sierra 10.13.2 Black screen unable to reboot
After updating to the latest High Sierra update 10.13.2, I was asked to restart my imac (2013). However, the imac did not restart and hangs with a black screen and a white cursor. I left it on for 7 hours, but nothing seems to be moving - still a black screen and cursor.
I forced a shutdown by press-holding the power button and restarted. Managed to get into the computer, but it looks like the update wasn't complete since the OS still shows version 10.13.1. In App Store, it looks like 10.13.2 was applied already and I was still asked to restart. Tried restarting again, with the same result with the black screen.
Tried a bunch of remedies but all did not help. Still stuck with the black screen whenever I do a restart or shutdown:
1. Booting up SAFE mode, disabled start up apps
2. Checked using command R - mac disk utility... no issue found
3. Reset PRAM with command-option-P-R, still black screen upon restart
4. Downloaded the 10.13.2 combination update but when I try to apply it, says that it requires 10.13.1. So I guess the update must have already been applied at least halfway.
Running out of ideas, and I would hate to reinstall the OS again. Can anyone give me any suggestions please? Thank you so much!
iMac, macOS High Sierra (10.13.2), imac (2011) - 3.4 GHz i7, 8GB RAM