Customer would like to change PID of the printer
Well this way is not standard and it was not intended to use apdconfig.xml in that way but it is possible.
The values for BT printer are highlighted below:
This page can help to determine the correct model code:
Anyway if you are not sure you can create a debug application and put the values in native application when you run the application and pair the device with printer it will fill the apdconfig.xml with correct values. Then you can use information from apdconfig.xml and delete additional source code from your application.