According to MacRumors, users on Apple’s forums and Reddit are stuck with a black screen when trying to update their late 2013 or mid 2014 13-inch MacBook Pro models to Big Sur. Nothing appears to solve the issue, including shortcuts to reset the NVRAM and SMC.
An engineer investigating one customer’s problems appeared to have resolved the issue after removing an IC chip for the HDMI port, but it’s not certain that’s the cause.
Well this wouldn’t be fun to deal with. It’s interesting that someone could resolve the issue by removing a chip from the HDMI port. I wonder if the video out is going to the wrong place. One thing I’ve learned over the years is that the only thing that should be plugged into the notebook during an OS update is the power …MacOS Big Sur update is bricking some older MacBook Pros