kbd\_mode: can't open '/dev/tty' : no such device or address
I too got the above error on my computer (an intel NUC6CAYH) using a USB keyboard (it only has USB ports)
The workaround was to disable UEFI boot and switch on “Legacy Boot” in the BIOS settings. In legacy boot mode the sandisk dashboard utility on the USB stick loaded (though another bug initially prevented me performing the secure erase, I found a solution)
If your computer normally boots via UEFI you’ll need to switch UEFI back on in the BIOS settings after erasing your ssd.
