Thanks for the work, people. Life got in the way here a bit.
I did a bit of digging based on the rar shared in this thread by Kaali: The APK does seem to contain code to write config data to the chip (com.goodix.tools.ICParametersConfig.class). I attached a version of the *.cfg converted to decimal, separated by newlines. There are 239 bytes in total, which do not seem to map cleanly to the config information in the datasheet.
I also attached a version of the flashing instructions with Google translations in them.
I used the APK with my Pro1 in USB debugging mode, and after havi