First off. What version of tgFX do you have? it will be the ‘build number’.
Second, when you click the reset button do you see the a red light flash for about 3 seconds? This means that while the red light is flashing your board is in the “bootloader mode”. This is a good thing. It, from there should enter the application (read tingy normal) and give you some serial output like System ready.
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).
I posted how to fix this on that thread. If this problem is what I think it is we will need to reload your bootloader (or if you have a programmer you can do that) Right now the quick fix is to do an re-flash via of the tinyg firmware. Read that other thread and it should get you going. I will look more into this problem.