Ask about ardupilot that does not work after calibration

ArduCopter
1

why after I calibrate, my arducopter is not working. I use APM.2.0 software.
thanks.

2

Please connect the cables correctly. What is not working ?

3

I’ve checked all the channels and the connection … seems no problem. and when armed, all the motors do not respond, I try to calibrate Esc one by one, everything looks normal, but after I raft back, all is not working properly. I am really beginning to use APM, and I do not know what to do.
Thanks.