Razor IMU M0 cannot be detected by Arudino IDE 1.8.8

Development Tools IDE 1.x
1

Hi, I have Sparkfun Razor IMU M0 board which Arduino IDE used to be able to detect when I first purchased it two days ago. Im using a Mac OS. Two days later, Arduino IDE cannot detect the port when it is plugged in. The LED on board still lights up though.

I'm very puzzled because when I plug in my Arduino Micro board, it detects the port and board. (using same cable)

I have tried:
-installing the FTDI drivers (2.4.2)
-changing the USB-MicroB cables
-installing ch34x V1.5

based on recommendations through google.

Any help would be appreciated as I need this to work for my project. Thank you in advance!

2

FTDI and CH34x drivers have nothing to do with this, because it doesn't have either of those parts on the board.

I don't know too much about the SAM boards - is it possible to upload code that hoses the USB functionality, like with many other boards with native USB? If so, there's a way to fix them. But again, I don't know what it is, because I don't have any of the SAM boards. Unless you managed to damage the chip, this is what happened.