I may have found the problem. I have another MacBook Pro which I successfully updated to High Sierra, and everything works as it should. Mbox Pro3 is recognized and playing audio. Now when I tried to update the OS on my main MBP, High Sierra wouldn't install whatsoever. I did some checking, and the difference is the SSD that I have installed. The one that works is a Crucial, and the stubborn one has a Samsung EVO. Someone has suggested that due to the firmware in the Samsung, the update will not work. And also, the driver for MBox Pro will not install either. The question now is, what's the solution to this problem?
