Hi, Bill
As you might not know, I uploaded both the files deleted in that commit and the files “upstream”, as they say.
So, as I can confirm they are bitwise identical, this may not be the problem but it might be related.
With the work of @anders, we managed to get a combination that works the best. However, some devices have different wireless hardware (the EEPROM to be more specific), that’s why the OEM includes different calibration for different regions.
If I might suggest something, I would like you, @mvh, to give a try to my binary prebuilt. It contains the same script we used with @anders and all the calibration files from the OEM firmware ready to test.
The script is easy to use, and the prebuilt is easy to install (as it have a bunch of preinstalled software).