@wilkinsaf , yes, you got it. By the way, you did not have to restore the old firmware, you could have just done this:
./voxl-esc-upload-firmware.py --firmware-baud-rate 57600 -f firmware/modalai_esc_firmware_m0117_1_v0_39_RC10_eb6fb500.bin --id 0
The following note does not really help, if you also have power connected to VOXL2..
WARNING: Specified ESC ID not detected; perform manual power cycle now
However, if the ESC is connected to a PC, you can just power cycle the ESC and the the bootloader will start up and firmware update will being.
Alex