Can't Update firmware - CUBE

ArduCopter Copter 3.6
1

I have a black CUBE PixHawk2. It contains 3.5.5 firmware and I tried to update it. I can connect using MP and read and write parameters, so I know I have the correct COM port, but when I try to upload FW, it gets hung at the “determining board type”. When I go into TERMINAL and try to connect, is reports “cannot open COM port”. I even tried APM Planner in order to load the latest code, but that doesn’t work either. Ideas?

When I use update firmware manifest, it gets to the “scanning com ports and hangs”.

2

Uninstall Mission Planner and re-install it. It will fix possible device driver issues

3

I tried that, but it didn’t work. Strangely, I used another computer, running the same version of Windows and it DID work.

4

Start MP, connect to the FC, wait untill params have loaded. disconnect, go to Install Firmware page and press Force Bootloader. Then select your firmware and upload it.