Installed Mojave, and worked fine at first. Did a restart and now I can't get past the following message.
It boots,. WiFi setting screen appears, then when I try proceed it says:
A critical software update is required for your Mac, but an error was encountered while installing this update.
Your Mac can't be used until this update is installed
[Shut down] [try again]
But it never passes that point.
Any thoughts?
I can't reinstall high Sierra either.
My 2016 13" got stuck on this. Worked through iPhone Hotspot, but refused to work through any other Wifi
Ive run into this several time on machines with failing or failed Touch Bars. It's my understanding the Touch Bar has its OWN operating software and this is what's flagging the problem. I had to replace the top case and even then I got the. message... once, but when I restarted I saw people posting about using Ethernet instead of Wifi. I did that and it worked. Customer had the issue pop up ONCE more for her, but she was able to restart t he computer and it went away
One thing that I tried that seems to work: when it shows the "shut down vs. try again" prompt, wait for five minutes before clicking "try again". Do not click "try again" immediately after it shows up.
Replying to an aging thread since I just ran into this with my Macbook Pro 2017...
I have not used this laptop for some time and it was on 11.1.1 when I signed into it so I updated to the latest 13.x... of course this then caused the aforementioned loop of errors that I could get around (eventually, by retrying the connection and download of the firmware update). However, each subsequent reboot would present the same error. Booting in safemode would avoid the error, but the system is generally too slow to be useable for working in...
So, deciding I wanted the latest version of MacOS Sequoia anyway (which Apple does not support directly), I used OpenCore Legacy Patcher and upgraded the OS. Once that was complete, my problem (assumed to be the touchbar firmware update process) went away and the laptop now works perfectly fine, including reboots.
Just wanted to put out there that, for me, this problem was solved by using the legacy patcher to update to Sequoia. Good luck all!
I managed to stop the critical update prompt at startup by deleting the following folder:
/System/Library/Templates/Data/Library/Apple/System/Library/Private/Frameworks/MobileDevice.framework
To do this, you first need to disable System Integrity Protection by booting into recovery mode and executing: csrutil disable
The only issue I encountered is that the camera stopped working.
Bypass Critical Update: A Workaround
I’ve discovered a method to bypass the critical update screen. Here’s how you can do it:
When the update screen appears:
This will bring up the normal login window, allowing you to use the computer
Persistent Fix (Avoid Repeating the Process on Reboot):
su <admin_user> sudo dscl /Local/Default -delete /Users/_mbsetupuser sudo killall loginwindow
Issues Encountered:
Question:
Has anyone found a way to resolve the authentication problem in System Preferences or encountered similar issues? Any suggestions or alternative approaches would be appreciated!