Chosen Solution
How do you stop a touchbar from flashing?
Just spoke with Apple support again and she mentioned a step no other support advisor mentioned…reset the NV RAM. To do this, I held the Option, Command, P and R keys while starting the computer. I held the keys for 20 seconds and the computer did another restart, after which I released the keys. This has stopped the flashing for now. If the flashing restarts again, I’ll add to this post. Thanks for your input, if you had responded to this post.
In my experience this is a sign that the Touch Bar’s display is failing and needs to be replaced. It’s not an unusual issue, but it is a bit of a gnarly repair due to the sheer amount of adhesive involved. This is the process for a 2020 model, which will be quite similar as far as getting the touchbar itself out. Just for point of reference.
