ESC calibration failed!

Hi everyone.
I’m using ArduCopter 4.2.2.
After Radio calibration, I tried to calibrate the ESCs with RC but after setting the throttle to a minimum, ESCs didn’t calibrate And they beep one after the other. I tried with MP But it was still not successful.
Can anyone help me, please?

MP doesn’t do that for you. It just allows ESC’s to be programmed whilst connected to the FC.
Prior to that feature being introduced each ESC had to be programmed individually whilst connected to the receiver of your RC. - You can still do it that way if you prefer.
But the actual procedure depends on your ESC manufacturer’s instructions.