[Dashz]

Already tried drivers, I did read the troubleshoot page but the pc doesn't detect the Board, no sound of usb connected and no Composite Device are shown in my hardware manager list, it doesn't matter if I connect the board with or without battery, it is like nothing was connected... And obviously I can't do anything.

The leds stay still for 4-5 seconds, then fast flashing and finally one of them (blue) flashes at a slower rate...

Any suggestion or tip would be appreciated..

[TheOtherCliff]

That sounds like normal "power on" for a CC3D.

Believe it or not, probably 1 in 10 similar issues is a bad USB cable.  Try another one.

Also, try another PC if just for a test.

I don't know about current versions of Windows, but it used to be that you must follow the instructions exactly.  Many people would plug the device in, before installing the software, the installer would pop up and say "I don't have a driver for that <OK> <Cancel>".  If you press OK, it will never ask you to install a driver again.  The solution is to find the bang (!) in device manager, "uninstall" on it, reboot, and follow the instructions correctly (that usually means installing some driver software before plugging the device in for the first time).  For LP, the device driver gets installed during one of the steps when you are installing GCS.

[Dashz]

It was the cable.................

The thing is that, I tried 4 cables! and 2 of them were actually data cables not only power cables and still didn't work, only 1 of them fixed things out...

Thanks.