Servers by jDrones

Motors constantly beeping

I have a very strange problem, my motors worked if i conected them to the radio. But if i conected them to the apm 2.8 only worked 2 of 4. So I decided tocalibrat my ESC and now anyone works they just beep constantly with the transmiter on, but if i turn it off the motors starts beeping faster. Help pls.

Servers by jDrones