Hello again and thank you again for all of your work here!
With the use of your repo I have been able to update from Big Sur 11.1 to 11.3.1 - Thank You!

A couple of questions...The readme still references the SMBIOS to use is 15,2 yet, this repo build is 14,1. Previously, it was 16,3. Have we determined the optimal SMBIOS to be using for the 8550U? Also, rebuilding the DSDTs from your script, is there a SMBIOS that script is intended for? If so, which one?

Lastly, I have followed your readme instructions (built DSDTs, rebuilt cache, cleared NVRAM, etc), but I have lost screen brightness control. It does not show up in the Display CP, nor functional via the brightness keys.

Any help with the above would be appreciated. Thanks again!