Nitho NEXUS Schnellstartanleitung Seite 10

If controller buttons fail or do not respond, use the console's
button test option to check button functionality:
Go on "System Setting">"Controllers and Sensors">"Test Input
Devices">"Test Controller Button"
Then the symbol for the button you press will appear on the
screen
To reset the Controller press the Reset button at the bottom of
the Controller.
WAKE UP/RE-CONNECTION FUNCTION
1. Press HOME for 1 second to wake up and reconnect the
Controller to the Switch® console.
2. It sleeps automatically if the connection fails after 15
seconds.
3. Press HOME button to wake up and reconnect to the last
mode used.
BUTTON TEST
RESET FUNCTION