The student exchanges the joy-con controller to the individual handheld grip.
text: Ups.
text: You put it on the wrong one, maybe try to pull it out again.
text: And you can attach the plus on the plus and the minus on the minus.
text: Now you also need to press down the white thing at the bottom of the controller, so that actually locks it.
text: Press the button.
text: Yes.
text: Perfect.