Hi, I can’t change anything ( I mean values or something else) in esc calibration tab, I have no any idea where is the problem. any solution?
The problem is the order of steps that you did. You missed a couple of steps that is why it is greyed out.
The correct order of steps is described How to methodically tune (almost) any multicopter using ArduCopter 4.4.x follow every single step in that order, from the beginning.
ok, thank you very much 