I just tried the SparkFun MicroMod Button sketch, which reads whenever the buttons are pressed on the Input & Display carrier board. It worked perfectly, read every button press. So looks like the Sno M2 is communicating with the Input & Display carrier board just fine. It also looks like the screen works, the backlight is not, just blank.
My question really is if the HyperDisplay library is compatible with the Sno M2? If not, then I don’t want to spin my wheels troubleshooting.