Unable to Calibrate ESC (Remove Battery Error Despite not Battery Connected)

I am attempting to calibrate the esc through the power tab on the QGC, but it kept prompting an error telling me to remove the battery despite there is no battery connected to the Pixhawk. What is connected to the Pixhawk is a receiver, the esc wires, and a USB connecting my pixhawk to my laptop.
Any ideas what prompting this error?

Thank you for any feedback!

1 Like

Basically, you must connect the power module, and do not connect the battery. Instead, wait for the notification from the QGC system, and then connect the battery to the power module, so that you can complete the ESC calibration process. By the way, if you use DShot communication protocol, then there is no need to perform ESC correction.