Replaced my MacBook Pro Display and now stuck in Critical Update Loop / Slow Boot / No TouchBar
Yes, yes, yes... SMC, NVRAM, wipe disk clean, Internet Recovery, fresh install of Sierra, High Sierra, Mojave, Catalina, Beta of Big Sur. Diagnostics you say? Done and all good from hardware.
Sierra and High Sierra seem to function in terms of operating macOS without the touchbar, so did Big Sur. For some reason Catalina can't.
Touchbar worked fine before display replacement. My Macbook Pro worked fine after display replacement...until the Catalina update.
Then I started to take a look at the software.
The EFI firmware for the T1 seems to only be manually reflashed. Internet Recovery or fresh macOS installs are supposed to take care of that, albeit not with the MBP 15" 2016 (13'3). I don't have a high level understanding of hidden folders, mounting, moving, duplicating and installing volumed through Terminal, Single-User Mode code. The issue seems to be best documented here https://blog.eriknicolasgomez.com/2016/11/30/the-untouchables-pt-2-offline-touchbar-activation-with-a-purged-disk/#offline-upgrades.
Since the inception of the Touch Bar MBPs, the issue of T1 firmware not being activated has been documented, and it seems many have experienced their laptops bricked by updates interrupted, updates done correctly. The most concerning part is that the bug was reported and it's reproducibility is marked as "always". https://openradar.appspot.com/29407715
This begs the question, what do customers do when their perfectly functioning machines are no longer functioning? Out of pocket another $800-$900 for a new logic board, as recommended?
The only reason I was changing my display in the first place was because of a flex cable issue that caused spotlighting and eventually failure on my screen when opened passed 45degrees. The new display assembly cost me $500 for the part, cost of labor was another $100. We're talking about an additional 1500 dollars to fix faulty hardware and software.
I simply want to have my quality machine to work with quality. And if there's a fix that may be a security risk, at least have Genius Bar reps equipped enough to fix firmware flashed with the combo ARM/x86 processors so that people don't go down 2,000 USD plus new logic boards (which would be unecessary if software is the issue).
My question is what can I do? I know I'm not the only one. You guys have collected all our money. You're a trillion dollar company now. Thanks. Thank you for showing that's possible, I'm looking for a fair way to have a working computer that can keep up with your reputation of your past products.
Can someone help?
P.S. This is what a trillion dollars looks like in numbers. $1,000,000,000,000.
MacBook Pro 15″, macOS 11.0