Matias
The steps should be -
- Power transmitter with stick up.
- Connect LiPO battery
- Disconnect battery with stick still high.
- Re-connect battery.
- Push safety swtich (if applicable)
- Wait for tones (from motors)
- Pull throttle stick down.
- A long tone should then be heard.
[See https://ardupilot.org/copter/docs/esc-calibration.html]
Alternatively, you can use Mission Planner as described here -
