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 indicates it is not receiving the correct arming signal or there is a safety lock. First, ensure your transmitter and receiver are properly bound and powered on. Next, check that your throttle stick is at the lowest position when powering up the ESC, as many ESCs require a zero throttle signal to arm. If you just calibrated the ESC, repeat the throttle calibration process carefully: power on with throttle full, wait for tones, then move throttle to minimum. Also, verify your ESC settings via its programming tool or software to confirm the correct throttle range and arming options are set. Inspect all wiring for loose or reversed connections, especially the signal wire from the receiver to the ESC. Finally, some ESCs beep if the battery voltage is too low or if the motor is obstructed, so check battery charge and motor freedom. Following these steps should resolve the beeping and allow your ESC to arm properly.