Chosen Solution
MacBook completely bricked from a OS update. No power. No signs of life. I was prompted to run a company OS update (formerly on Catalina). Not sure if it tried to update to Big Sur or Monterey.On the first restart, it indicated that I needed to boot up from startup disk.Boots up, but asks for another restart for installation to complete.I initiate 2nd restart, the MacBook never comes back on. Solutions I’ve tried: Holding power button for 10 secondsResetting the SMCResetting the NVRAM/PRAMCharging with different MacBook chargers @danj - After combing this site and reading your expert responses, I am so curious if you have a thought.
Sorry not enough here to base an opinion, When you restart your system does it respond at all? Hear the bong and/or fan, get any alteration in the screen (backlight light, screens grey color change). The fact it was looking for the startup disk implies the update might have been infected with malware! Are you sure this dictum from your company vs someone posing as them and where was the update originating from Apples servers or the companies. Why did they say you had to upgrade? Apple rolls out security updates for at least four versions back. As a frame of reference I’m running Mojave and still getting updates for it. Is this your own system or a company supplied system? If its your own I think you’ll need to visit an Apple Store to get your system fixed if its a suppled system time to drop it off at your IT dept. and let them deal with it (hopefully they give you a replacement system).
