The motor's of quad not spining after the board is armed also.
Calibration of esc done. After arming motors not spining
Does it spin when throttle is increased?
Please post more details about what you have done & a photo of ur setup.
Which GCS are you using? Usually some other sensors may be enabled which aren't even connected. When it is connected to your computer, does it give you pre-arm warnings?
Done ...the problem was with the firmware ......