Why does my ESC keep beeping and won’t arm?

Question: Why does my ESC keep beeping and not arm?

Answer: Continuous beeping from your ESC usually means it’s not receiving the correct throttle signal or there's a safety lock preventing arming. First, check that your transmitter and receiver are properly bound and the throttle stick is at its lowest position. Power on your setup and listen for the ESC’s initial calibration tones – if these are missing or inconsistent, recalibrate the ESC by following its manual: typically, this involves powering up with the throttle stick at maximum, then lowering it after a beep sequence. Also, ensure the battery voltage is within safe range; low voltage can cause beeping as a warning. Confirm all motor connections are secure and the ESC firmware is compatible with your hardware. Lastly, some ESCs require a specific arming sequence or safety switch to be pressed. Review your ESC’s instructions for any such requirements. Following these steps should stop the beeping and allow your ESC to arm safely.