Yes it's probably COM10 that you need to use,

If you have no output, it means the box is DEAD, as any box if it has a minimum of life would give an output via the COM/Service port.

Try again, as I beleive you probably do something wrong.

Admin

P.S.: See our example with our DreamOne on COM7

P.S.2 : Bold Menu
Dream One To Connect the putty with the service port. Turn off the device. When you turn it on, hold the C + ctrl to go to the bolt menu.