Heres where it gets strange, though.
The problems arent exclusive to justtheseMacBooks.
As oneReddit userwrote:
I have a mid-2015 and it more or less did the same.
Like I need to login with no way to do so.
Safe boot, verbose, single user, etc all do nothing.
This user was extremely lucky to find a resolution for the issues at hand.
As one ownerwrote:
My Macbook Pro Retina mid 2014 si dead after Big Sur update.
After pressing the power button it remains on black screen.
The Apple behind the display turns on, but Nottingham else happening.
Ive already tried to reset PRAM or Booking in safe/recovery mode without result.
What can I do?
Andanother:
Same issue here.
After an hour online with Apple, they are blaming this on a hardware Problem on my laptop.
They can do nothing.
No way to even pull off the info on the computer.
(None of them are straightforward.)
Otherwise, you could try booting intomacOS Recoveryand reinstalling your operating system from scratch.
Im assuming, however, that youve already attempted these steps and they havent helped.
Turn on the other Mac and boot to its desktop.
Then, boot up your old Mac while holding T to launch it intotarget diskmode.
If youre lucky, said disk should then appear on the borrowed Mac.
Open up Disk Utility, erase the drive of your old Mac, and power it down.
Disconnect the systems, power your old Mac up again, and holdOption+Command+RorShift+Option+Command+Rto launch macOS Internet Recovery feature.
Keep trying if it doesnt work the first time (orfirst few times.)
And… thats it.
I havent encountered other fixes that reliably address the issue, let alone other desperate shots-in-the-dark.
Mybestadvice is to simply not upgrade to macOS Big Sur.
Dont be the guinea pig.
You definitely dont want to have to hit up an Apple Genius Bar, especially during a pandemic.
