Cube Black Pixhawk SN:CU11A8301309, Windows 10, MP New install.
Installing Firmware → Select Frame (downloading Firmware) → Remove USB and press OK and reinsert USB
I get the message “lost communications with board”
I’ve tried all over and over, no joy. Any suggestion?
Use windows device manager, set “show non-present devices” and see if there’s any conflicting com ports. Move the COMx assignment of one or more of the COM ports to resolve the conflict.
SOLVED 
Windows assigned a COM port to the Chube that was already assgend to Intel Active Management Technology - SOL