Firmware Recovery After Failed Update or Corruption
Let's double check a few things. First, you have the blue power light flashing, correct? If so, do you have both of the mini USB cables connected to your PC or is one connected to your game console?
If one is connected to your console and the other to your PC, unplug both then connect one from the PC to the PC input on KeyMander, and the one from the game console to the Power input on KeyMander. Does the blue light turn solid or still flash?