Thanks for the quick response!
I just cloned the latest version of tgFX from github. I don’t see where to find the build number though in the code or the app.
I do see a flashing red light for about 3 seconds when I reset the tinyG board, but I don’t get any system ready response in CoolTerm, just a blank terminal window. The board has a solid green light (next to Motor 1 terminals) and a solid blue light (next to the usb port).