A: look at the PCB, on all rusEFI boards we expect blue LED to always blink

A: rusEFI console splash screen has "Device Manager" icon, please click it.

A: Do you have power? Do you have any LED lights? Do you have USB cable? On all modern units we have a PROG button. Power cycle your unit while connected to PC while holding PROG button, your PC should report STM32 BOOTLOADER in device manager.

A: Make sure your USB cable is proper data cable not evil charge-only cable.

See also Troubleshooting-older-Frankenso