Lets get some specifics covered off. Please check what version of the GHI SDK you have installed - check the README file in the program files\GHI electronics directory. You’re looking for the “USBizi version” and it should say 4.1.7.1 (the latest). Then go into MFDeploy and find what firmware version the Domino has (change connection to USB, then Target–> Device Capabilities) Again, you’re looking for the 4.1.7.1 version. When they don’t match, go through the firmware update process.
Then my next suggestion is to show us your MAIN() code. You should then also try adding debug statements into the code and perhaps the driver to see what is working and not, and also stepping through the code will help. Another suggestion is that you take a photo that clearly shows how you have all the connections wired up so that we can examine that for issues.