Problems with FRDM-KL25Z (MBED Drive) on Mac

Sooo… After following every single step that is requiered to make the driver MBED show up and not the FRDM-KL25Z (so that I can start uploading code to it), it looks that my only option is to go find for a Windows 7 PC (I’ve already tried with Windows 10), but that right now is not an option. The thing is that I’ve tried uploading the firmware file to the driver (BOOTLOADER and FRDM-KL25Z), but nothing happens. And yes, I’m pretty sure I have it updated. The info of my board right now is the next one:

Board Name is: FRDM-KL25Z
MicroBoot Kernel Version is: 1.06
Bootloader Version is: 1.12
Installed Application: PEMicro FRDM-KL25Z Mass Storage/Debug App
Application Version is: 1.18

Any ideas so the MBED driver shows up and I can start uploading code to it???

I was able to get the firmware loaded from a Linux machine, then the board was accessible from Mac OS.