If you want to bring up the RC calibration screen, you can do so by holding the button on the side of the bottom layer of the powercube. See the manual page 27 Manual.qq190racingdrone.com
You should get to The RC calibration when first powering on the quad. If not, push and hold the button on the side of the electronics stack for 10 seconds.
If you want to bring up the RC calibration screen, you can do so by holding the button on the side of the bottom layer of the powercube. See the manual page 27 Manual.qq190racingdrone.com