With the Steele PDB I was not able to flash the new firmware, neither on Mac or Windows. On Windows this issue was probably related to my updates being turned off. So I plugged the board in the windows machine and it recognized it as a CP2102 serial to USB adapter but it didn´t show the COM port in XLoader. So I did a quick search online and found the following drivers:
With the Steele PDB I was not able to flash the new firmware, neither on Mac or Windows. On Windows this issue was probably related to my updates being turned off. So I plugged the board in the windows machine and it recognized it as a CP2102 serial to USB adapter but it didn´t show the COM port in XLoader. So I did a quick search online and found the following drivers:
https://www.pololu.com/docs/0J7 (not sure if this is the right approach or just a lucky shot)
Installing these, it worked right away. This also worked on OSX Sierra which was my main issue. This might be useful for other people aswell.
Cheers ODM