Monterey 12.1 introduced a new EFI version which is V428.60.3.0.0. The dump attached here is from a board I recently repaired off eBay so I'm not concerned about the serial number ending up distributed to the rest of the world via your chip vendor.
I have cleaned the ME of this dump, and tested it back on the board. It was a 2015 board, but this dump can also be used on any 165 board from 2015 to 2017. Clear the PRAM after installing it.
If you plan on working with QFN8/WSON8 chips a lot for programming, I recommend getting one of the flip top sockets off Aliexpress. Just do a search for "QFN8 /WSON8/MLF8/MLP8/DFN8 TO DIP8 universal two-in-one socket/adapter for both 6*5MM and 8*6MM chips". There are more expensive ones, but this one does the job.
I have cleaned the ME of this dump, and tested it back on the board. It was a 2015 board, but this dump can also be used on any 165 board from 2015 to 2017. Clear the PRAM after installing it.
If you plan on working with QFN8/WSON8 chips a lot for programming, I recommend getting one of the flip top sockets off Aliexpress. Just do a search for "QFN8 /WSON8/MLF8/MLP8/DFN8 TO DIP8 universal two-in-one socket/adapter for both 6*5MM and 8*6MM chips". There are more expensive ones, but this one does the job.